2,4-Pteridinediol2,4(1H,3H)-蝶啶二酮2,4-二羟基蝶啶2,4-蝶啶二醇无水茶碱Lumazine2,4-Pteridinediol2,4-Dihydroxypteridine2,4(1H,3H)-Pteridinedione2,4-dihydroxypteridine2,4-Dihydroxypteridinelumazine2,4(3H,8H)-PteridinedioneLumazine1H,3H-pteridine-2,4-dionePteridine-2,4-dione