Synonyms: 2-Piperazino-4-(1'-oxido-thiomorpholino)pyrido(3,2-d)pyrimidine dihydrochloride;2-(1-Piperazinyl)-4-(4-thiomorpholinyl)pyrido(3,2-d)pyrimidine S-oxide dihydrochloride;4-(1-oxidothiomorpholin-4-yl)-2-(piperazin-1-yl)pyrido[3,2-d]pyrimidine dihydrochloride;Pyrido(3,2-d)pyrimidine, 2-(1-piperazinyl)-4-(4-thiomorpholinyl)-, S-oxide, dihydrochloride;AC1L53AJ;AC1Q6Z5W;AR-1F5648;LS-134145;4-(2-piperazin-1-ylpyrido[3,2-d]pyrimidin-4-yl)-1,4-thiazinane 1-oxide dihydrochloride