Molekula
Riboflavin
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Riboflavin, also known as vitamin B2, is a water-soluble vitamin essential for energy metabolism and cellular function. It is used in nutritional supplements, food fortification, and biochemical research. Available with CAS number 83-88-5, molecular formula C17H20N4O6, and molecular weight 376.36 g/mol, it is stable at ambient storage conditions. Molekula supplies Riboflavin from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £20.00 per pack ex VAT · £24.00 inc. VAT
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100 g — £30.90 per pack ex VAT · £37.08 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Orange powder |
| Heavy metals | ≤0.001% |
| Identification | Conforms to reference |
| Loss on Drying | ≤0.5% |
| Assay | ≥98.0% |
| Residue on Ignition | ≤0.2% |
| Specific optical rotation | -120 to -140 |
| Arsenic (As) | ≤0.002% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Orange to yellow crystals or needles |
| Odour | Slight odor |
| Melting Point | 280 °C (decomposes) |
| Solubility (other solvents) | Slightly soluble in alcohols; insoluble in lipid solvents |
| pKa | pKa = 10.2 |
| log P (octanol/water) | -1.46 |
Source: PubChem CID 493570 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 15667878 |
| CAS Number | 83-88-5 |
| IUPAC Name | 7,8-dimethyl-10-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]benzo[g]pteridine-2,4-dione |
| EC Number | 201-507-1 |
| Molecular Formula | C17H20N4O6 |
| Molecular Weight | 376.36 |
| Exact Mass | 376.1383 |
| SMILES | CC1=CC2=C(C=C1C)N(C3=NC(=O)NC(=O)C3=N2)C[C@@H]([C@@H]([C@@H](CO)O)O)O |
| InChIKey | AUNGANRZJHBGPY-SCRDCRAPSA-N |
| InChI | InChI=1S/C17H20N4O6/c1-7-3-9-10(4-8(7)2)21(5-11(23)14(25)12(24)6-22)15-13(18-9)16(26)20-17(27)19-15/h3-4,11-12,14,22-25H,5-6H2,1-2H3,(H,20,26,27)/t11-,12+,14-/m0/s1 |
| PubChem CID | 493570 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29362300 |
| Tariff Code | 2936230000 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Beflavin
- Beflavine
- Flavaxin
- Lactoflavin
- Lactoflavine
- Ribipca
- Riboderm
- Riboflavine
- vitamin B2
- Vitamin G
Frequently asked questions
What is riboflavin used for?
Riboflavin (vitamin B2) is used in nutritional supplements, food fortification, and as a fluorescent tracer in biochemical research.
What is the chemical formula and molecular weight of riboflavin?
The formula is C17H20N4O6 with a molecular weight of 376.36 g/mol.
How should riboflavin be stored?
Store at ambient temperature, protected from light and moisture.
What grade of riboflavin does Molekula supply?
Molekula supplies riboflavin in pharmaceutical and research-grade forms.
Can Molekula supply riboflavin in bulk?
Yes, Molekula can supply riboflavin in bulk quantities upon request.
What documentation comes with a riboflavin order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS).
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.