Is Riboflavin-5-Phosphate vegan?
Riboflavin-5-Phosphate
Riboflavin-5-phosphate, also known as flavin mononucleotide (FMN), is a more water-soluble form of riboflavin (vitamin B2) used as a food colourant and nutritional supplement. It can be produced via microbial fermentation or chemical phosphorylation of riboflavin.
Why unconfirmed?
Riboflavin-5-Phosphate can be either derived from animal, or non-animal sources. The ingredient name itself is identical either way, so the label alone can’t tell you which. Only a supplier declaration can.
| Also known as | Coflavinase, Flavin mononucleotide, Flavin Mononucleotide Sodium Salt, FMN, FMN Sodium Salt, Riboflavin 5'-phosphate, Riboflavin sodium phosphate, Riboflavin-5-Sodium Phosphate, Vitamin B2, Vitamin B2 phosphate, Vitamin B2 phosphate sodium salt |
|---|---|
| E number | E101a |
| INS number | 106 |
| CAS number | 130-40-5 |
| EC number | 204-988-6 |
| Last verified | 23 August 2026 |
An ingredient is considered vegan if it contains no animal-derived components at any point in its production.
Selling a product with this ingredient? A supplier declaration can confirm the source. See how certification works.
Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.
