1,2,3,4,4a,9b-Hexahydro-2-methyl-5H-pyrido(4,3-b)indole dihydrochloride 2-Methyl-1,2,3,4,4a,9b-hexahydro-gamma-carboline dihydrochloride 40431-54-7 5H-Pyrido(4,3-b)indole, 1,2,3,4,4a,9b-hexahydro-2-methyl-, dihydrochloride