1,4,5,10-Tetrahydro-7,8,10-trimethyl-2,4-dioxobenzo(g)pteridine-3(2H)-acetic acid 1,5-Dihydro-N(3)-carboxymethyllumiflavin 50635-52-4 Benzo(g)pteridine-3(2H)-acetic acid, 1,4,5,10-tetrahydro-7,8,10-trimethyl-2,4-dioxo- CFlH2