Riboflavin, also known as vitamin B2 or lactoflavine, is a water-soluble vitamin used in food and beverage production as a yellow-orange colour. Under the E-number E101, it imparts a stable yellow hue to a range of products while also functioning as a nutrient in fortified foods. Its category, vitamin and mineral, reflects its role in enrichment and colouring, and it is authorised under Reg. 231/2012 and Reg. 1333/2008.

Manufacturers use riboflavin in beverages, dairy, cereals, and sauces where a yellow colour or vitamin fortification is needed. It is typically supplied as a crystalline powder, sparingly soluble in water, and is stable under normal processing conditions but sensitive to light. Formulators should store it protected from light and consider its solubility when incorporating it into liquid systems.

Also known as Riboflavin, Riboflavine, Lactoflavine

Physical state
powder
Solubility
Slightly soluble in water
Odour
Odourless
Regulatory overview

Identification and regulatory context

Regulation
Reg. 231/2012 + Reg. 1333/2008
E-number
E101
CAS number
83-88-5
Chemical formula
C17H20N4O6
Also known as
Riboflavin, Riboflavine, Lactoflavine
Quality & compliance

Product notes

AppearanceYellow to orange-yellow crystalline powder
Shelf life36 months, unopened
StorageCool, dry place, away from light

QC requirements

TestRequirement
Assay>=98.0% (Ph.Eur.)
Heavy metalsPer specification
Luminiflavin testPer specification
Specific absorbancePer specification

QC requirements shown apply to every destination or to the EU. Lot-specific results (assay, moisture, pH, microbiological and heavy-metal testing) vary by production batch and are supplied on the Certificate of Analysis for each shipment.

Allergens
None declared. Confirm allergen status with us before use.
Dietary status
Contact us to confirm.
  • Certifications: FSSC 22000, CNAS CoA, GMO fermentation decl, Ph.Eur. / FCC standard
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FAQ

Common questions about Riboflavin (Vit B2)

Is a Certificate of Analysis provided with Riboflavin (Vit B2)?

Yes. Every shipment of Riboflavin (Vit B2) comes with a batch-specific Certificate of Analysis. If you need further documents, such as an allergen or GMO declaration or a certificate of origin, tell us at the enquiry stage and we will confirm what is available.

How should Riboflavin (Vit B2) be stored, and what's its shelf life?

Storage: Cool, dry place, away from light. Shelf life: 36 months, unopened.

What certifications apply to Riboflavin (Vit B2)?

The certifications associated with Riboflavin (Vit B2) include FSSC 22000, CNAS CoA, GMO fermentation decl, Ph.Eur. / FCC standard. Tell us which certification your audit requires and we will confirm what can be provided before you order.

Can I get a sample of Riboflavin (Vit B2) before placing a full order?

In most cases, yes. Tell us your target volume and application on the contact form and we'll confirm sample availability along with indicative pricing and lead time.