1,2,3,4-Tetrahydro-N,N-diethyl-2-methyl-5H-pyrido(4,3-b)indole-8-carboxamide hydrochloride 40431-48-9 5H-Pyrido(4,3-b)indole-8-carboxamide, 1,2,3,4-tetrahydro-N,N-diethyl-2-methyl-, hydrochloride