2H-Pyrazino(2,3-b)-1,4-thiazin-3(4H)-one, 4-(2-(dimethylamino)ethyl)-, monohydrochloride 4-(2-(Dimethylamino)ethyl)-2H-pyrazino(2,3-b)-1,4-thiazin-3(4H)-one hydrochloride 55879-59-9