The molecule is riboflavin in which the nitrogen at position 5 is replaced by CH and the methyl groups at positions 7 and 8 are substituted by hydrogen and hydroxy, respectively. It has a role as a prosthetic group. It derives from a riboflavin. It is a conjugate acid of a 7,8-didemethyl-8-hydroxy-5-deazariboflavin(1-).
10-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]-1H-pyrimido[4,5-b]quinoline-2,4,8-trione