Synonyms: 5-Methylamino-1,3-dimethylpyrido(4,3-d)pyrimidine-2,4-dione;1,3-Dimethyl-5-(methylamino)pyrido(4,3-d)pyrimidine-2,4(1H,3H)-dione;Pyrido(4,3-d)pyrimidine-2,4(1H,3H)-dione, 1,3-dimethyl-5-(methylamino)-;AC1MJ73N;LS-134139;1,3-dimethyl-5-(methylamino)pyrido[4,3-d]pyrimidine-2,4-dione;112500-68-2