What is Thiamine Mononitrate used for?

Thiamine Mononitrate is used as a vitamin B1 source in food enrichment, fortification and nutritional premixes. Common technical applications include flour, cereal, rice, pasta, powdered beverages, nutrition products and food supplements where permitted.

Does Thiamine Mononitrate have an E number?

It is normally regulated and labeled as a vitamin or nutrient source rather than as a conventional E-number food additive. The permitted form, use level and label name must be confirmed for the destination market.

What percentage of Thiamine Mononitrate is equivalent to thiamin?

Based on molecular weights, pure Thiamine Mononitrate theoretically contains approximately 81.1 percent thiamin cation by mass. Commercial calculations must also account for the lot assay, moisture basis and the regulatory reporting convention.

Is Thiamine Mononitrate the same as Thiamine Hydrochloride?

No. Both supply vitamin B1, but they are different salts. Thiamine Mononitrate is generally less hygroscopic and less water soluble and is often favored in dry fortification. Thiamine Hydrochloride is generally more soluble and may be easier to use in liquid systems.

Can Thiamine Mononitrate be added directly to a beverage?

Its lower water solubility can make direct addition unsuitable for some beverages. The manufacturer should test dissolution, haze, sediment, pH stability and processing loss or consider a more soluble thiamin form or formulated preparation.

Is Thiamine Mononitrate stable during baking?

It is comparatively suitable for dry premixes, but thiamin can still be lost during mixing, fermentation, baking, extrusion and storage. Retention depends on moisture, pH, time, temperature, sulfites, reducing sugars and the complete food matrix.

Why is fortification overage used?

A validated overage may compensate for manufacturing, storage and analytical losses so that the product remains within its legal and declared nutrient range through shelf life. Overage should be supported by stability data and must not create excessive initial levels.

Can sulfites destroy thiamin?

Sulfite can degrade thiamin rapidly in susceptible aqueous and food systems. Formulations containing sulfiting agents require specific compatibility and shelf-life testing.

How should Thiamine Mononitrate be added to flour?

Because the required dose is very low, it is normally added through a standardized vitamin or enrichment premix rather than dosed as pure powder directly into a large flour stream.

Which analytical methods are used?

Raw-material identity and assay may be determined using pharmacopoeial or validated chromatographic methods. Finished-food thiamin is commonly measured after controlled extraction using HPLC, fluorescence after thiochrome derivatization or another validated official method.

Which documents should buyers request?

Buyers should request a current specification, lot-specific certificate of analysis, safety data sheet, assay method, thiamin-equivalent basis, particle-size information, origin, manufacturing-site information, allergen and GMO statements, stability data, packaging specification and destination-market compliance documents.

Is Thiamine Mononitrate permitted in infant and medical foods?

These categories are governed by specific compositional and nutrient-source legislation. Suitability must be confirmed for the exact product category, population, country, purity standard and maximum or minimum nutrient level.

Vitamin B1 Fortification, Enrichment & Nutrient Premixes

Thiamine Mononitrate

Name: Thiamine Mononitrate
Brand: Global Food Additives, Inc.

Thiamine Mononitrate is a crystalline vitamin B1 source used in food enrichment, fortification and nutritional premixes. It is particularly suited to dry products such as flour, cereal, rice, pasta, bakery premixes, nutrition powders and tablet or capsule systems where controlled potency, low-dose distribution and dry storage stability are required.

Thiamine, also called thiamin or vitamin B1, is a water-soluble essential nutrient. Thiamine Mononitrate supplies the positively charged thiamin molecule as a nitrate salt. Commercial formulation calculations must distinguish between the weight of the complete mononitrate salt, the raw-material assay and the amount declared as thiamin or vitamin B1.

The ingredient is normally handled as a fine crystalline powder or as a standardized dry premix. It should not automatically be treated as a freely soluble liquid-fortification ingredient: Thiamine Mononitrate is less water soluble than Thiamine Hydrochloride, and direct use in beverages can create slow dissolution, haze or sediment unless the formulation and process are validated.

Request quotation Review technical data

Food-grade Thiamine Mononitrate Vitamin B1 crystalline powder

Product-form correction: Pure Thiamine Mononitrate is normally a crystalline powder. Granules, beadlets, dilute powders and premix-ready grades are formulated products; clear aqueous solutions are more commonly associated with highly soluble thiamin forms or specially developed liquid preparations.

Product identity

Product name	Thiamine Mononitrate
Alternative spelling	Thiamin Mononitrate
Nutrient identity	Vitamin B1 / Thiamin
Chemical type	Mononitrate salt of the thiamin cation
Chemical formula	C₁₂H₁₇N₅O₄S
Approximate molecular weight	327.36 g/mol
CAS number	532-43-4
Theoretical thiamin equivalent	Approximately 81.1% thiamin cation by molecular-weight calculation before raw-material assay correction
Conventional E / INS number	Not normally assigned as a conventional food-additive E number; regulated as an authorized vitamin B1 source
Typical appearance	White to off-white crystalline powder
Typical odor	Mild or characteristic; free from objectionable foreign odor
Water behavior	Water soluble but substantially less soluble than Thiamine Hydrochloride; dissolution is formulation- and temperature-dependent
Hygroscopicity	Generally lower than Thiamine Hydrochloride, supporting dry premix and cereal applications
Primary function	Vitamin B1 enrichment and fortification
Typical commercial forms	Pure powder, standardized dilution, granulated premix, protected preparation or multi-vitamin blend

Primary industrial functions

Mandatory enrichment: supplies vitamin B1 where grain or flour standards require restoration of nutrients removed during milling.
Voluntary fortification: increases thiamin content to a defined nutritional target in permitted food categories.
Nutrition-premix component: provides a standardized vitamin B1 source in multi-nutrient blends.
Label-claim support: may contribute toward legally defined “source,” “high,” Daily Value or nutrient-reference-value claims.
Process-loss compensation: can be applied with a validated overage to account for expected manufacturing and storage losses.
Dry-system compatibility: supports low-moisture flour, cereal, powder, tablet and capsule applications.
Micronutrient standardization: allows production batches to meet a controlled thiamin range.

Not a processing aid: Thiamine Mononitrate is added for nutritional vitamin B1 content. It is not normally used to modify texture, preservation, acidity, color or processing performance.

Potency basis

Thiamine Mononitrate, thiamin and vitamin B1 equivalents

Fortification errors can occur when the target is expressed as thiamin but the weighing instruction is calculated as Thiamine Mononitrate without applying the correct conversion.

Quantity	Meaning	Calculation requirement
Thiamine Mononitrate mass	Total mass of the vitamin B1 nitrate salt	Used for warehouse, dispensing and batch-weighing instructions
Raw-material assay	Measured purity or potency of the commercial lot	Correct the theoretical conversion using the lot-specific COA
Thiamin cation equivalent	Nutritionally active thiamin portion of the salt	Theoretical fraction is approximately 0.8106 before assay correction
Declared vitamin B1	Amount reported on the finished-food nutrition label	Must follow the destination-market definition and units
Premix potency	Thiamin or Thiamine Mononitrate per kilogram of premix	Confirm whether the supplier states salt weight or vitamin equivalent
Finished-product release result	Measured vitamin B1 after manufacturing	Compare against legal limits, label target and analytical tolerance

Contract wording: Specifications and premix labels should state explicitly whether potency is reported “as Thiamine Mononitrate,” “as thiamin” or “as vitamin B1.”

Form selection

Thiamine Mononitrate compared with Thiamine Hydrochloride

Selection factor	Thiamine Mononitrate	Thiamine Hydrochloride
Typical positioning	Dry enrichment and fortification	Liquid, soluble or pharmaceutical-style systems
Water solubility	Lower	Higher
Hygroscopicity	Generally lower	Generally higher
Dry premix handling	Often preferred for flour and cereal premixes	May require additional moisture and caking control
Direct liquid addition	May dissolve slowly or incompletely at practical concentrations	Usually easier to dissolve
Molecular-weight conversion	Requires mononitrate-to-thiamin conversion	Requires hydrochloride-to-thiamin conversion
Regulatory suitability	Must be confirmed for the exact destination market and food category
Final selection	Should be based on solubility, process, stability, purity, premix compatibility, claims and applicable legislation

Specification review

Technical purchasing specification framework

The exact release limits depend on the selected pharmacopoeial, food-chemical, national or customer specification. The purchase order should name the controlling standard and revision rather than relying only on the phrase “food grade.”

Parameter	Purchasing requirement	Industrial significance
Identity	Confirmed as Thiamine Mononitrate using a validated compendial or chromatographic method	Prevents confusion with Thiamine Hydrochloride or a standardized premix
Chemical formula	C₁₂H₁₇N₅O₄S	Supports identity and equivalent calculations
Assay	Controlled range on the stated as-is or dried basis	Primary input for fortification and premix calculations
Thiamin-equivalent basis	Supplier declaration of the conversion used	Prevents under- or over-fortification
Appearance	White to off-white crystalline powder	Color change can indicate contamination or deterioration
Identification tests	Chemical, spectroscopic or chromatographic compliance	Confirms the thiamin and nitrate salt identity
Loss on drying / water	Controlled maximum using a defined method	Influences potency, caking, flow and stability
Residue on ignition / sulfated ash	Controlled maximum	Supports control of inorganic manufacturing residues
Related substances	Individual and total impurities controlled where required	Supports synthesis consistency and shelf-life quality
Nitrate identity or content	Confirmed according to the controlling standard	Distinguishes the mononitrate salt
Residual solvents	Complies with the manufacturing route and applicable standard	Relevant to synthesis and purification controls
Elemental impurities	Lead, arsenic, cadmium, mercury and other required elements	Supports food, supplement and special-nutrition compliance
Particle size	Sieve or laser-diffraction profile suited to the premix	Affects homogeneity, dust, dissolution and segregation
Bulk density	Typical or controlled range	Relevant to volumetric feeding, packaging and premix matching
Flowability	Supplier or application-specific criterion	Affects micro-dosing, hopper discharge and blend uniformity
Microbiological quality	Risk-based limits, especially for formulated or diluted grades	Pure crystalline material and carrier-containing products may require different controls

Method alignment: Assay values from different methods or reporting bases should not be treated as directly equivalent until the calculation and moisture basis have been reconciled.

Commercial grades

Pure powder, standardized dilution and protected preparations

Commercial form	Primary characteristics	Key purchasing questions
Pure crystalline powder	High-potency Thiamine Mononitrate with no intentional carrier	Assay, particle size, density, dusting and micro-dosing capability
Standardized dry dilution	Vitamin blended with starch, maltodextrin, flour or another approved carrier	Thiamin potency, carrier identity, homogeneity, allergens, microbiology and label impact
Granulated grade	Engineered particles intended to improve flow, reduce dust or match a premix particle profile	Binder composition, active content, dissolution and segregation
Protected preparation	Coated or matrix-protected vitamin intended to improve handling or stability in a defined application	Coating composition, release, bioavailability, process retention and legal status
Multi-vitamin premix	Thiamin combined with other vitamins and a controlled carrier system	Full composition, potency tolerances, incompatibilities, overages and blend uniformity
Enrichment premix	Thiamin combined with riboflavin, niacin, folic acid, iron or other nutrients required by a grain standard	Legal nutrient ratios, iron compatibility, feed rate and flour homogeneity

Stability engineering

Heat, moisture, pH, sulfite and storage effects

Thiamine Mononitrate offers useful dry-state stability, but vitamin B1 is not chemically inert. Stability can decline after hydration or during severe processing and prolonged storage.

Risk factor	Potential effect	Control strategy
Moisture	Increases molecular mobility, caking and degradation risk	Use moisture-barrier packaging and control premix water activity
Heat	Can reduce thiamin retention during baking, extrusion, pasteurization or long hot holding	Measure process retention and minimize unnecessary thermal exposure
Alkaline pH	Thiamin is generally less stable in neutral-to-alkaline aqueous systems	Control pH, heating time and addition point
Acidic pH	Often provides better aqueous stability than alkaline conditions	Confirm final pH, taste and compatibility rather than assuming full stability
Sulfites	Can cleave and destroy thiamin in susceptible systems	Avoid direct incompatibility or validate the complete sulfite-containing product
Reducing sugars	Can contribute to degradation during heat and storage, especially in moist systems	Test actual sugar composition, water activity and temperature
Oxidizing or reducing agents	May alter the thiazolium-containing vitamin structure	Complete compatibility testing with the full premix
Light	May contribute to loss in exposed liquid or premix systems	Use protective packaging and limit open handling
Trace metals	Can catalyze reactions indirectly through oxidation chemistry	Control raw materials, water and equipment contact
Long storage	Gradual potency decline can reduce end-of-shelf-life compliance	Establish real-time stability and a justified overage

Dry versus wet stability: Stability data for sealed dry powder should not be applied directly to a hydrated beverage, dough, fermented product or liquid premix.

Fortification design

Process retention and overage strategy

Overage is the additional nutrient added above the declared or minimum target to compensate for predictable losses. It should be established from process and shelf-life data, not selected as an arbitrary fixed percentage.

Stage	Possible loss mechanism	Measurement point
Premix manufacture	Weighing loss, dust, incomplete transfer or blend non-uniformity	Released premix potency and homogeneity
Plant dosing	Feeder error, line retention, segregation or incorrect calibration	Fortified intermediate after complete mixing
Fermentation or resting	Moisture, pH, enzymes and time-dependent reaction	Product before thermal processing
Baking or extrusion	Heat, moisture, pressure, shear and chemical reaction	Finished product after cooling
Drying	Heat exposure and prolonged residence time	Product after final moisture equilibration
Packaging	Dust loss, segregation or product retained in equipment	Composite sample from packaged production
Shelf life	Moisture, oxygen, heat, light and ingredient interaction	Scheduled real-time stability intervals

Overage calculation

Initial target = required end-of-shelf-life thiamin ÷ expected retained fraction

For example, an expected retained fraction of 0.85 represents 85% retention. The resulting initial target must still comply with maximum levels, safety requirements, analytical tolerances and applicable nutrition-labeling rules.

Overage limitation: Overage should compensate for demonstrated loss, not for uncontrolled weighing, poor mixing or an unstable formulation that should be redesigned.

Formulation calculations

Thiamin-equivalent and batch-addition calculations

Thiamin equivalent in raw material

Thiamin-equivalent fraction = Thiamine Mononitrate assay fraction × 0.8106

Use the supplier’s certified conversion where the controlling standard specifies a different reporting convention.

Pure raw-material addition

Raw material, kg = target thiamin, mg/kg × batch mass, kg ÷ (1,000,000 × thiamin-equivalent fraction)

Add the validated overage to the target before completing the calculation.

Premix addition

Premix, kg = required thiamin, mg ÷ premix potency, mg/kg

Confirm whether premix potency is expressed as thiamin, Thiamine Mononitrate or another vitamin B1 basis.

Nutrition-label contribution

Thiamin per serving = finished-product thiamin, mg/kg × serving mass, g ÷ 1,000

Percent reference value or Daily Value should be calculated using the destination market’s current reference intake.

Retention calculation

Retention, % = measured thiamin after processing ÷ measured or calculated thiamin before processing × 100

Premix dilution factor

Dilution factor = final premix mass ÷ pure vitamin mass

The dilution factor should provide a practical plant feed rate without creating excessive premix freight or carrier addition.

Premix engineering

Low-dose blending, carrier selection and homogeneity

Directly adding a few grams of pure vitamin into several tonnes of food creates a high risk of poor distribution. Industrial systems generally use geometric dilution or a standardized premix.

Recommended premix sequence

Calculate the active requirement. Convert the nutritional target to actual Thiamine Mononitrate or premix weight.
Select a compatible carrier. Match particle size, density, moisture, flow and regulatory status.
Prepare an initial concentrate. Blend the vitamin with a small, controlled amount of carrier.
Apply geometric dilution. Increase the blend mass progressively while maintaining uniform distribution.
Control blend energy. Use enough mixing to achieve uniformity without excessive heat, attrition or electrostatic charging.
Verify homogeneity. Take representative samples using a statistically justified plan.
Protect the premix. Fill promptly into moisture- and light-resistant packaging.
Validate plant feeding. Confirm that the premix remains uniform through conveying, hopper storage and final dosing.

Carrier-selection criteria

Destination-market authorization
Particle-size compatibility
Bulk-density compatibility
Low moisture and water activity
Low electrostatic tendency
Good flow and feeder behavior
Neutral odor, flavor and color
Allergen and GMO status
Analytical compatibility

Common segregation drivers

Large particle-size differences
Large bulk-density differences
Vibration during transport
Long free-fall distance
Air classification during pneumatic transfer
Electrostatic charging
Particle attrition
Excessive handling between blending and use

Blend-uniformity principle: Passing the premix COA does not prove uniform nutrient distribution in the finished food. Feeder accuracy and downstream segregation must also be validated.

Application engineering

Potential food and nutrition applications

The following are technical evaluation areas. Permitted forms, minimum and maximum levels, enrichment requirements, claims and label declarations vary by jurisdiction and food category.

Application	Potential purpose	Critical validation points
Wheat flour	Mandatory or voluntary enrichment and restoration of milling losses	Legal enrichment range, premix feed rate, flour homogeneity, baking loss and analytical control
Maize flour and cornmeal	Vitamin B1 enrichment or public-health fortification	National standard, particle matching, nixtamalization, cooking loss and premix segregation
Rice	Enrichment through coated kernels, extruded kernels or dusting systems	Wash loss, cooking retention, kernel distribution, color and legal process requirements
Breakfast cereals	Vitamin B1 fortification and nutrition-claim support	Extrusion or toasting loss, topical coating, serving size, package moisture and shelf life
Pasta and noodles	Enrichment or restoration of refined-grain nutrients	Dough distribution, drying temperature, cooking-water loss and finished-product analysis
Bakery premixes	Controlled vitamin addition before industrial baking	Premix homogeneity, fermentation, sulfites, reducing sugars and oven retention
Nutrition powders	Multi-vitamin fortification in meal-replacement and nutrition systems	Moisture, mineral interactions, serving dose, reconstitution and storage stability
Dry beverage mixes	Vitamin B1 fortification in powder format	Dissolution, haze, sediment, final pH and consumer preparation
Liquid beverages	Vitamin B1 fortification where the selected form is technically suitable	Solubility, pH, heat, light, sulfite, package life and comparison with Thiamine Hydrochloride
Food supplements	Tablet, capsule, sachet or powder vitamin B1 source	Authorized nutrient form, dosage, uniformity, disintegration, claims and national notification
Infant and young-child foods	Controlled vitamin B1 supply where specifically authorized	Category-specific legislation, purity, minimum and maximum levels, stability and analytical release
Foods for special medical purposes	Nutritionally complete or condition-specific vitamin B1 supply	Medical-food rules, patient group, clinical formulation, maximum levels and shelf-life potency
Plant-based foods	Vitamin B1 standardization or nutritional fortification	Protein and mineral matrix, pH, processing heat, serving size and nutrition claims
Extruded snacks	Vitamin B1 fortification or enrichment positioning	Barrel conditions, feed moisture, post-extrusion coating, retention and package stability

Grain enrichment

Flour-mill dosing and enrichment control

Premix feeder controls

Use a feeder sized for the actual premix rate.
Calibrate by mass over a defined collection period.
Confirm output across the operating-speed range.
Install low-level and no-flow alarms where appropriate.
Prevent bridging and rat-holing in the hopper.
Record flour flow and premix feed continuously.
Recalibrate after premix-density or supplier changes.

Mixing and sampling controls

Add premix into a proven turbulent flour zone.
Provide sufficient conveying or blending distance.
Avoid adding immediately before product separation.
Use composite sampling across time and package positions.
Trend thiamin together with other enrichment nutrients.
Investigate feeder variation before increasing overage.
Maintain traceability between premix and flour lots.

U.S. enriched-flour reference

The U.S. standard of identity for enriched flour is provided in 21 CFR 137.165. It specifies nutrient quantities for enriched flour, including thiamin, riboflavin, niacin, folic acid and iron. Manufacturers should confirm the current text and calculate the premix against the actual flour output and analytical basis.

Reference: 21 CFR 137.165 — Enriched flour

Liquid systems

Dissolution, beverage use and solution stability

Although Thiamine Mononitrate is water soluble, its lower solubility relative to Thiamine Hydrochloride can make it unsuitable for some concentrated liquid premixes or clear beverages.

Development question	Potential risk	Recommended test
Does the full dose dissolve?	Undissolved particles or sediment	Concentration ladder at actual water quality and temperature
Is the solution clear?	Haze or precipitation after dilution	Visual and instrumental turbidity testing
Is the pH suitable?	Accelerated degradation at unfavorable pH	Real-time and accelerated potency testing at final pH
Are sulfites present?	Rapid thiamin destruction	Compatibility trial using the maximum sulfite concentration
Is there a thermal process?	Pasteurization or hot-fill loss	Measure potency before and after the full heat cycle
Is the package light protective?	Storage loss in transparent packaging	Light-exposure comparison using intended packaging
Is a liquid premix stored?	Potency loss before production use	Hold-time study under actual tank conditions
Is another thiamin form better?	Unnecessary complexity and sediment risk	Compare Mononitrate and Hydrochloride on equal thiamin basis

Compatibility assessment

Interactions with other premix and food components

Component	Potential interaction	Recommended control
Sulfites	Can rapidly degrade thiamin	Avoid incompatible combinations or validate retention through shelf life
Iron salts	May contribute indirectly to oxidation or premix instability	Select iron form, carrier and packaging using premix stability data
Copper salts	Can catalyze oxidative reactions in moist systems	Minimize direct concentrated contact and control moisture
Ascorbic acid	Can alter local acidity and redox conditions	Evaluate the complete vitamin and mineral premix
Riboflavin	Light-sensitive vitamin systems may show complex photochemical behavior	Use light-protective packaging and complete stability studies
Reducing sugars	Heat and moisture may promote degradation reactions	Test actual baking, extrusion or storage conditions
Alkaline minerals	Can raise local pH and reduce stability after hydration	Avoid highly concentrated contact and test the final matrix
Hygroscopic vitamins or minerals	Can increase premix moisture uptake and caking	Use moisture control, suitable carriers and barrier packaging
Enzymes	Food enzymes and native thiaminases may affect nutrient retention in selected matrices	Evaluate the actual raw material and heat process
High-fat matrices	Poor distribution may occur without an appropriate dry carrier	Use a validated premix and confirm serving-to-serving uniformity

Analytical control

Raw-material assay and finished-food testing

Raw-material testing

Identity by validated compendial method
Assay on the stated basis
Water or loss on drying
Related substances
Residue on ignition
Elemental impurities
Particle size
Appearance and odor
Bulk density and flow where specified

Premix testing

Thiamin potency per kilogram
Blend uniformity
Moisture and water activity
Particle-size distribution
Bulk density
Flowability
Carrier identity
Microbiological quality
Stability through stated shelf life

Finished-food method considerations

Use a method validated for the actual food matrix.
Define whether total thiamin includes phosphorylated natural forms.
Use controlled extraction and dephosphorylation where required.
Control light, pH and temperature during sample preparation.
Assess recovery using fortified matrix samples.
Use certified reference material where available.
Include analytical uncertainty in release and label decisions.
Do not compare methods without a bridging study.

Sampling limitation: Even an accurate laboratory method cannot correct a non-representative sample from an inhomogeneous fortified batch.

Quality assurance

Incoming inspection and COA review

COA checks

Correct product and salt form
CAS number
Controlling specification and revision
Assay result and basis
Thiamin-equivalent declaration
Water or loss on drying
Related-substance results
Residue or ash
Elemental impurities
Authorized quality approval

Physical inspection

Package and seal integrity
Correct product label
Lot number and expiry
White to off-white powder
No unusual discoloration
No foreign odor
No moisture damage
No severe caking
No visible contamination

Traceability

Manufacturer and approved production site
Country of origin and manufacture
Batch or lot number
Manufacturing date
Retest, expiry or best-before date
COA issue date
Specification revision
Package and pallet identification
Purchase-order reference

Change-control triggers

Manufacturing-site change
Synthesis-route change
Raw-material source change
Specification or method change
Particle-size change
Packaging change
Carrier or formulation change
Shelf-life change
Regulatory-status change

Production overview

Typical synthesis, salt formation and finishing stages

Commercial manufacturing routes are supplier-specific. Thiamine is generally produced by controlled chemical synthesis followed by salt formation, purification, crystallization, drying and particle finishing.

Intermediate manufacture: suitable pyrimidine and thiazole intermediates are prepared and purified.
Molecular coupling: the key intermediates are combined to form the thiamin structure.
Salt conversion: the thiamin cation is converted into the required mononitrate form.
Purification: reaction by-products, residual reagents and solvents are reduced.
Crystallization: controlled conditions produce the required crystalline material.
Solid-liquid separation: crystals are isolated and washed.
Drying: moisture and residual solvent are reduced under controlled conditions.
Milling or classification: particle size is adjusted for the intended commercial grade.
Blending: lots may be homogenized or standardized where permitted.
Quality release: identity, assay, impurities, water and physical parameters are reviewed.
Protective packaging: released product is packed in controlled food-grade packaging.

Source declaration: Commercial Thiamine Mononitrate is normally synthesized rather than extracted directly from a vitamin-rich plant or animal food.

Market compliance

Regulatory, enrichment and labeling considerations

European Union

The current consolidated food-supplement framework lists thiamin mononitrate as an authorized vitamin B1 substance. General fortification, food supplements, infant foods and foods for special medical purposes remain subject to separate compositional, labeling, purity and national requirements.

United States

Thiamin is used in standardized enriched grain products and may be used in other foods or dietary supplements under the applicable legal framework. The exact nutrient level and permitted form depend on the food category.

The current U.S. Daily Value for thiamin for adults and children aged four years and older is 1.2 mg. Added thiamin and related claims must be declared according to current nutrition-labeling rules.

Special nutrition categories

Infant formula, follow-on formula, young-child foods, meal replacements, foods for special medical purposes and therapeutic nutrition products require category-specific review.

Confirm the permitted vitamin B1 form.
Confirm minimum and maximum thiamin levels.
Confirm the applicable energy or serving basis.
Confirm purity and contaminant standards.
Confirm analytical release requirements.
Confirm age-group and medical-use labeling.
Confirm national notification or registration requirements.

Buyer responsibility: Authorization of Thiamine Mononitrate as a nutrient source does not automatically authorize every dose, claim, food category or consumer group.

Nutrition claims

Label declaration and claim substantiation

Labeling issue	Required control
Ingredient name	Use the legally accepted market name, such as Thiamine Mononitrate, thiamin or vitamin B1, as applicable
Nutrition declaration	Report thiamin in the required unit and serving or 100 g basis
Reference-value percentage	Use the destination market’s current reference intake or Daily Value
Source or high claim	Confirm the legal threshold and expected end-of-shelf-life level
Energy-metabolism claim	Use only wording authorized in the destination market and only when qualifying conditions are met
Natural claim	Do not describe synthetic Thiamine Mononitrate as naturally extracted without substantiation
End-of-shelf-life compliance	Support the declared amount with validated process retention, stability and analytical tolerance

Supplier qualification

Manufacturing and food-safety controls to review

Quality-system review

Recognized food-safety or quality certification
Pharmaceutical- or food-chemical GMP where applicable
Raw-material approval and traceability
Validated synthesis and purification controls
Residual-solvent control
Elemental-impurity control
Laboratory method validation
Foreign-material prevention
Change-control notification
Recall and mass-balance capability

Declarations and certifications

Food-grade or nutrient-source compliance statement
Compendial compliance where required
Country-of-origin statement
Manufacturing-site declaration
Allergen and cross-contact statement
GMO statement
Irradiation status
Animal-origin, vegan and vegetarian status
Halal and Kosher certificates where required
Primary-packaging food-contact compliance

Operational handling

Micro-dosing, dust and contamination controls

Thiamine Mononitrate is a high-potency micronutrient used at low concentrations. Accurate weighing and containment are therefore as important as conventional food-ingredient hygiene.

Dispensing controls

Use calibrated balances suited to the required mass.
Apply independent verification for critical additions.
Use dedicated, labeled dispensing containers.
Reconcile issued, returned and consumed quantities.
Prevent confusion between salts and potency grades.
Use barcode or electronic material verification where available.
Record lot number and actual weight.

Dust and hygiene controls

Follow the current supplier Safety Data Sheet.
Minimize airborne dust during bag opening and weighing.
Use local extraction where the risk assessment requires it.
Use appropriate eye, skin and respiratory protection.
Avoid compressed-air cleaning.
Use clean, dry and approved vacuum equipment.
Assess combustible-dust characteristics for the supplied grade.
Prevent cross-contamination with other micronutrients.

Supply-chain planning

Packaging, storage and transport

Typical packaging

Packaging depends on order size, potency, customer handling and supplier. Common formats may include sealed foil-laminate bags, double polyethylene liners, fibre drums, cartons with inner bags or other moisture- and light-resistant systems.

Net weight per pack
Primary food-contact liner
Moisture-vapor barrier
Light and oxygen barrier
Tamper-evident closure
Desiccant where validated
Drums or cartons per pallet
Lot, potency and expiry labeling
Container-loading configuration

Storage controls

Store in sealed packaging in a cool, dry area.
Protect from humidity, condensation and direct water contact.
Protect from heat and direct light.
Keep away from sulfites and incompatible chemicals.
Prevent foreign odor and dust contamination.
Reseal partial packs immediately.
Use clean and dry dispensing utensils.
Apply FEFO stock rotation.
Follow the supplier’s temperature and shelf-life statement.
Assess significant transport or warehouse excursions.

Partial-pack control: Repeated opening can introduce humidity and create inventory errors. Select pack sizes aligned with normal batch consumption.

Process efficiency

Fortification accuracy and waste reduction

Efficient nutrient use

Use assay-corrected calculations.
Base overage on measured retention.
Use practical premix feed rates.
Minimize dust and line retention.
Prevent rejected batches through feeder alarms.
Trend finished-product potency.
Reduce expired inventory through FEFO planning.

Packaging and logistics

Select pack sizes that minimize partial containers.
Use high-potency grades where micro-dosing is controlled.
Use standardized premixes where they reduce plant errors.
Optimize pallet and container utilization.
Protect material to avoid humidity-related disposal.
Coordinate forecast and shelf life before large purchases.

Documentation

Documents to request before approval

Core technical documents

Current Product Specification
Technical Data Sheet
Lot-specific Certificate of Analysis
Assay method and reporting basis
Thiamin-equivalent calculation
Safety Data Sheet
Particle-size information
Packaging specification
Shelf-life and storage statement

Compliance documents

Food-grade or nutrient-source declaration
Pharmacopoeial or food-chemical compliance where required
Destination-market regulatory statement
Allergen and cross-contact declaration
GMO and irradiation statements
Animal-origin, vegan and vegetarian declaration
Halal and Kosher certificates where required
Food-safety or GMP certificate
Primary-packaging food-contact declaration

Stability and application documents

Dry-storage stability
Premix stability
Baking or extrusion retention data
pH stability data
Sulfite-compatibility information
Recommended overage guidance
Solubility and dissolution guidance
Comparison with Thiamine Hydrochloride

International trade documents

Commercial invoice
Packing list
Certificate of origin
Health or free-sale certificate where required
Legalized or chamber-certified COA where required
Transport-classification statement
ISPM 15 declaration where applicable
Importer-specific product-registration documents

Commercial preparation

Information required for an accurate quotation

Inquiry field	Information to provide
Product identity	Thiamine Mononitrate / Thiamin Mononitrate / Vitamin B1
Required grade	Pure powder, pharmacopoeial grade, food-chemical grade, standardized dilution, granulate or premix
Application	Flour, cereal, rice, pasta, bakery premix, nutrition powder, beverage, supplement or special-nutrition product
Potency basis	Required assay as Thiamine Mononitrate, thiamin or vitamin B1
Fortification target	Required thiamin in mg/kg, mg/serving or other legal basis
Process conditions	Mixing, fermentation, baking, extrusion, drying, pasteurization or hot filling
Product conditions	Moisture, water activity, pH, sulfite, sugar, minerals and shelf life
Physical requirements	Particle size, bulk density, flow, solubility and premix compatibility
Regulatory market	Destination country, food category and consumer group
Required standard	USP, Ph. Eur., FCC, national, customer or other reference specification
Quantity	Sample, pilot trial, drum, pallet, regular order and annual forecast
Packaging	Bag, carton, fibre drum, liner, pallet and private-label requirement
Destination	Delivery city, port and country
Commercial terms	Requested Incoterm, currency, payment preference and shipment window
Reference material	Existing specification, COA, approved sample, premix formula or competitor product

Technical questions

Frequently asked questions

What is Thiamine Mononitrate?

It is the mononitrate salt of thiamin, an essential water-soluble nutrient also known as vitamin B1.

What is it used for?

It is used for vitamin B1 enrichment and fortification in flour, cereal, rice, pasta, nutrition powders, supplements and other legally permitted products.

Does it have an E number?

It is generally regulated as a vitamin source rather than as a conventional E-number additive. The exact label name depends on the market.

What is its chemical formula?

The formula is C₁₂H₁₇N₅O₄S, with an approximate molecular weight of 327.36 g/mol.

How much thiamin does the salt provide?

Pure Thiamine Mononitrate theoretically provides approximately 81.1% thiamin cation by mass. The commercial lot assay must also be applied.

Is it the same as Thiamine Hydrochloride?

No. Both supply vitamin B1, but they have different counterions, molecular weights, solubility and dry-handling characteristics.

Which form is better for flour?

Thiamine Mononitrate is often selected for flour and dry cereal premixes because of its dry-blend handling and comparatively low hygroscopicity.

Which form is better for beverages?

Thiamine Hydrochloride may be easier to dissolve, but the best form depends on pH, process, concentration, label requirements and shelf life.

Can Thiamine Mononitrate be added directly to a large batch?

Direct addition of pure vitamin at very low dosage can produce poor uniformity. A standardized premix is normally safer and more accurate.

Why is an overage used?

A validated overage compensates for predictable processing and storage losses so the product remains within its declared range through shelf life.

Is the vitamin heat stable?

It has useful dry-state stability but can be lost during baking, extrusion, pasteurization and prolonged hot processing. Retention must be measured in the actual food.

Is it stable at every pH?

No. Thiamin is generally less stable in neutral-to-alkaline aqueous systems and usually more stable under controlled acidic conditions.

Can it be used with sulfites?

Sulfites can degrade thiamin. Sulfite-containing formulations require specific compatibility and shelf-life studies.

How is finished-product thiamin measured?

Validated methods may use HPLC or fluorescence following controlled extraction and thiochrome derivatization. The method must suit the food matrix.

Can it be used in infant formula?

Only when the exact vitamin form, purity, minimum and maximum level and product category comply with the destination market’s special rules.

How should it be stored?

Store it sealed in a cool, dry area protected from humidity, heat, direct light, sulfites and incompatible chemicals.

Which COA values are most important?

Review identity, assay, reporting basis, thiamin equivalent, water, related substances, residue, elemental impurities and any agreed particle-size parameters.

Can Global Food Additives compare an existing grade?

Yes. Buyers can provide a specification, COA, premix formula, approved sample, potency basis or competitor grade for technical and commercial comparison.

Request a technical quotation

Tell us the Thiamine Mononitrate grade and potency you require.

Include the finished-food application, fortification target, potency basis, required standard, process conditions, quantity, packaging, destination market and documentation requirements.

Existing specifications, COAs, premix formulas, retention data or approved samples can be described in your message. Our team will review the inquiry and respond from orders@foodgradeadditives.com .

orders@foodgradeadditives.com +90 507 856 26 11 Istanbul, Turkey