10-Deazariboflavine NSC112202 Pyrimido[4,5-b]quinoline-2,4(3H,10H)-dione, 7,8-dimethyl-10-(ribo-2,3,4,5-tetrahydroxypentyl)- Ribitol, 1-deoxy-1-(3,4-dihydro-7,8-dimethyl-2,4-dioxopyrimido[4,5-b]quinolin-10(2H)-yl)-