1 GZ4 7,8-dimethyl-2,4-dioxo-10-(3-phenylpropyl)-1,2,3,4-tetrahydrobenzo[G]pteridin-10-ium 1.000 2 A1B7N (7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[G]pteridin-10(2h)-yl)acetaldehyde 0.714 3 LFN Lumiflavin 0.704