1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo-7H-purine-7-acetic acid, compound with 7-[2-(dimethylamino)ethoxy]-2-phenyl-4H-1-benzopyran-4-one (1:1) Perflavon 2-(1,3-dimethyl-2,6-dioxo-4,5-dihydropurin-7-yl)acetic acid 2-(1,3-dimethyl-2,6-dioxo-4,5-dihydropurin-7-yl)ethanoic acid 2-(2,6-diketo-1,3-dimethyl-4,5-dihydropurin-7-yl)acetic acid 7-(2-dimethylaminoethyloxy)-2-phenyl-chromen-4-one 7-(2-dimethylaminoethyloxy)-2-phenylchromen-4-one 7-(2-dimethylaminoethyloxy)-2-phenyl-chromone