Flavin Mononucleotide

What is Flavin Mononucleotide?

Flavin mononucleotide also known as riboflavin 5 phosphate is produced from riboflavin (vitamin B2) by the enzyme riboflavin kinase. [1]

It is the principal form in which riboflavin is found in cells and tissues. Energetically, it is more expensive to produce, but is more soluble than riboflavin. [1]


Designated with E number E101a, it is used as a food dye and is likely derived from genetically modified organisms. [1]