The molecule is the pteridine that is lumazine substituted with methyl groups at C-6 and -7 and with a 1-D-ribityl group on N-8. It has a role as an Escherichia coli metabolite and a cofactor. It derives from a lumazine and a ribitol. It is a conjugate acid of a 6,7-dimethyl-8-(1-D-ribityl)lumazine(1-).
6,7-dimethyl-8-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]pteridine-2,4-dione