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Color.
Ingredients / Vitamins / Vitamin B2, Riboflavin
Vitamins
Vitamin B2, Riboflavin (E 101(i))
Vitamin B2 (riboflavin) for U.S. manufacturers, from vetted producers. FCC / USP grade on request. Download the sample spec sheet, then send us your grade and quantity.
TRACED · CERTIFIED · RELIABLE · TRANSPARENT · TESTED
Key facts
| CAS No. | 83-88-5 |
|---|---|
| E-number (EU) | E 101(i) |
| Synonyms | Lactoflavin; |
| Chemical formula | C17H20N4O6 |
| Molecular weight | 376,37 |
| Description | Yellow to orange-yellow crystalline powder, with slight odour |
| Grades | EU Reg. 231/2012 (E 101(i)) sample spec · FCC / USP available on request for U.S. food/pharma use |
| Origin | Confirmed in every offer; stated per lot on the COA |
| Storage, shelf life, packaging | Per the producer's specification, on request |
What vitamin B2 (riboflavin) is
Chemical name: 7,8-Dimethyl-10-(D-ribo-2,3,4,5-tetrahydroxypentyl)benzo(g)pteridine-2,4(3H,10H)-dione. Formula C17H20N4O6, molecular weight 376,37. Yellow to orange-yellow crystalline powder, with slight odour. (Source: EU Regulation 231/2012, E 101(i).)
Applications by industry
Sample specification
Values from EU Regulation 231/2012 (E 101(i)), consolidated text of 18.08.2026. Actual values depend on the producer; the producer's specification and the COA for your lot are available on request.
| Assay | Content not less than 98 % on the anhydrous basis |
|---|---|
| Loss on drying | Not more than 1,5 % (105 °C, 4 hours) |
| Sulphated ash | Not more than 0,1 % |
| Primary aromatic amines | Not more than 100 mg/kg (calculated as aniline) |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
| Mercury | Not more than 1 mg/kg |
| Cadmium | Not more than 1 mg/kg |
Download the full spec sheet (PDF)
Documents and sourcing
Droplet promise. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Data sheet, SDS and COA on request. Every delivery ships with a COA linked to the delivered lot.
Questions buyers ask
What is vitamin B2 (riboflavin) used for?
Typical uses by industry. Food & beverage: Color. Suitability for your product and market is confirmed with the producer's specification.
Which grades can McBoeck supply?
Food grade to EU Regulation 231/2012 (E 101(i)). FCC / USP grade is available on request for U.S. food and pharma use. Particle size and other grade details follow the producer's specification, on request.
Which documents come with vitamin B2 (riboflavin)?
Every delivery ships with a COA linked to the delivered lot. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request.
What does the sample spec sheet show?
Limits for assay, loss on drying, sulphated ash, primary aromatic amines, arsenic, lead, mercury and cadmium, taken from EU Regulation 231/2012. Actual values depend on the producer; the producer's specification and the lot COA are available on request.
How do I get a quote?
Send us the grade, quantity and delivery location through the quote form or at [email protected]. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Related vitamins
Ascorbyl PalmitateRiboflavin 5'-Phosphate SodiumVitamin EAll vitamins
Need vitamin B2 (riboflavin)?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.