Vitamin B2 Ingredient · Bulk Powder
Riboflavin Sodium Phosphate Supplier
Riboflavin Sodium Phosphate is a phosphate form of Vitamin B2 used in nutritional formulations where this specific B2 form is required. It is distinct from conventional Riboflavin and is available from Gensei for bulk ingredient sourcing.
Request a QuoteProduct Identity
Riboflavin 5′-Phosphate Sodium / Vitamin B2
Riboflavin Sodium Phosphate is also searched as Riboflavin 5 Phosphate Sodium, Riboflavin-5-Phosphate Sodium and FMN Sodium. The supplied COA identifies the ingredient as Riboflavin Sodium Phosphate, CAS 130-40-5.
Quality Specification
Riboflavin Sodium Phosphate Specification & Batch Results
Specification limits and lot-specific results for identity, related substances, elemental impurities, residual solvents, microbiological quality and Riboflavin assay on a dry basis.
| Test Item | Specification | Batch Result |
|---|---|---|
| Description | Yellow to orange-yellow crystalline powder | Conforms |
| Identification – Fluorescence | Specified fluorescence response under long-wavelength UV | Conforms |
| Identification – Sodium Salt & Phosphates | Specified sodium and phosphate reactions | Conforms |
| Free Riboflavin | ≤ 6.0% | 4.1% |
| Riboflavin Diphosphate | ≤ 6.0% | 3.1% |
| Inorganic Phosphate | ≤ 1.0% | 0.23% |
| Specific Optical Rotation | +37.0° to +42.0° | +39.6° |
| pH of 1.0% Solution | 5.0–6.5 | 6.0 |
| Lumiflavin | Absorbance ≤ 0.025 | 0.001 |
| Sulphated Ash | ≤ 25.0% | 21.9% |
| Loss on Drying | ≤ 7.5% | 5.4% |
| Heavy Metals (as Pb) | ≤ 10 ppm | < 10 ppm |
| Cadmium | ≤ 1 ppm | < 0.005 ppm |
| Arsenic | ≤ 1 ppm | < 0.01 ppm |
| Lead | ≤ 2 ppm | < 0.02 ppm |
| Mercury | ≤ 0.1 ppm | < 0.005 ppm |
| Assay of Riboflavin on Dry Basis | 73.0%–79.0% | 75.4% |
| Methanol | ≤ 3000 ppm | 55 ppm |
| Acetonitrile | ≤ 410 ppm | 3 ppm |
| Pyridine | ≤ 200 ppm | 5 ppm |
| Total Aerobic Microbial Count | ≤ 1000 CFU/g | < 100 CFU/g |
| Yeast & Mold | ≤ 100 CFU/g | < 10 CFU/g |
| E. coli | Absence/g | Not Detectable |
| Salmonella | Absence/g | Not Detectable |
| Staphylococcus aureus | Absence/g | Not Detectable |
COA reference: batch C312510801. The certificate states that the product complies with USP2024.
Formulation
Working with Riboflavin Sodium Phosphate
This Vitamin B2 phosphate form has its own handling, solubility and identity considerations and should not be treated as interchangeable with conventional Riboflavin.
Aqueous Formulations
This phosphate sodium form can be considered when a formulation requires a different handling or solubility profile from conventional Riboflavin. Performance should be confirmed in the finished formulation system.
Light & Moisture Protection
The supplied COA specifies protection from light and moisture. Processing and packaging should preserve those handling conditions.
Hydrate State & Molecular Weight
Riboflavin 5′-phosphate sodium is listed in both anhydrous and hydrated forms in chemical databases. Because molecular formula and molecular weight depend on hydrate state, purchasing specifications should follow the identity stated on the supplier COA or specification rather than applying a hydrate-specific value by default.
Assay Interpretation
The COA reports assay as Riboflavin on a dry basis, with a specification of 73.0%–79.0%. This value should not be presented as generic product purity.
Applications
Riboflavin Sodium Phosphate for Nutritional Formulations
Common formulation uses include liquid systems, vitamin premixes and specialized nutritional products that specifically require the phosphate sodium form of Vitamin B2.
Liquid Supplement Systems
Suitable for evaluation in aqueous or liquid systems where Riboflavin Sodium Phosphate is the specified Vitamin B2 form.
Vitamin Premixes
Suitable for vitamin premixes when Riboflavin Sodium Phosphate is specified for the finished formulation.
Specialized Nutritional Formulations
Suitable for nutritional formulations that specifically require Riboflavin Sodium Phosphate / FMN Sodium rather than conventional Riboflavin.
Vitamin B2 Forms
Riboflavin Sodium Phosphate vs. Riboflavin
These are distinct Vitamin B2 ingredients with different identities, specifications and formulation characteristics.
Riboflavin Sodium Phosphate
This is the phosphate sodium form of Vitamin B2, also known as Riboflavin 5′-Phosphate Sodium or FMN Sodium.
Conventional Riboflavin
Conventional Riboflavin is a separate Vitamin B2 ingredient with its own identity, specification and COA values.
Bulk Supply
Bulk Riboflavin Sodium Phosphate Supply
Gensei supplies Riboflavin Sodium Phosphate with batch documentation and 25 kg/drum packing for commercial ingredient purchasing.
Documentation
USP2024-Referenced Batch COA
The supplied certificate records identity, related substances, elemental impurities, residual solvents, microbiological tests and the USP2024 batch conclusion.
Packaging & Storage
25 kg/Drum
The supplied COA lists 25 kg/drum packaging.
Store in a well-closed container and protect from light and moisture, as stated on the certificate.
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