1-Amino-8-methoxy-3,4-dihydropyrazino(1,2-a)indole hydrochloride 127556-78-9 8-Methoxy-3,4-dihydropyrazino(1,2-a)indol-1-amine monohydrochloride Pyrazino(1,2-a)indol-1-amine, 3,4-dihydro-8-methoxy-, monohydrochloride