Riboflavin Sodium Phosphate (Riboflavin-5'-Phosphate Sodium) is a food-grade water-soluble form of vitamin B2 used in injectable formulations, fortification and food colouring applications.We supply bulk Riboflavin Sodium Phosphate sourced from leading China manufacturers, available in powder form to meet global food industry demand. Our Riboflavin Sodium Phosphate is widely used in injectable vitamin B2 formulations, fortification, beverage vitamin B2 enrichment, infant formula fortification and yellow food colouring.
Riboflavin Sodium Phosphate is produced by phosphorylation of riboflavin (vitamin B2) at the 5'-position followed by sodium salt formation. It provides dramatically improved water solubility compared to free riboflavin.
This enables use in injectable vitamin formulations, liquid supplements and beverage fortification. Also used as a yellow food colouring (E101a).
| Item | Specification |
|---|---|
| Appearance | Yellow to orange-yellow crystalline powder |
| Assay (Riboflavin) | ≥ 73.0% |
| Specific Rotation [α]D²⁰ | +38° to +42° |
| Loss on Drying | ≤ 8.0% |
| pH (2% solution) | 5.0-7.0 |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Riboflavin Sodium Phosphate with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.