Riboflavin 5'-phosphate sodium anhydrousProduct ingredient for Flavin mononucleotide

Name
Riboflavin 5'-phosphate sodium anhydrous
Drug Entry
Flavin mononucleotide

Flavin mononucleotide (FMN), also known as riboflavin 5'-phosphate, is one of the two major coenzymes derived from riboflavin (vitamin B2) and is one of the principal forms in which dietary riboflavin is found.1,3 FMN is composed of an isoalloxazine ring - which serves as the active redox center - attached to a ribityl phosphate chain.4 Alongside flavin adenine dinucleotide (FAD), for which it is a direct precursor, FMN plays critical roles in energy production, cellular function, and in the metabolism of fats, drugs, and steroids.3

In addition to its systemic use as a means of riboflavin supplementation, a topical ophthalmic preparation of FMN was approved by the FDA in October 2025 for use as a photoenhancer in epithelium-on corneal collagen cross-linking.5,2

Accession Number
DBSALT001766
Structure
Synonyms
Flavin mononucleotide monosodium salt / Riboflavin 5'-(dihydrogen phosphate), sodium salt (1:1) / Riboflavin 5'-phosphate sodium / Riboflavin sodium phosphate / Riboflavin sodium phosphate anhydrous / Sodium riboflavin phosphate