13574-91-9 6-Methylthio-1-(3,4,5-trimethoxyphenyl)-3-methyl-1,2,3,4-tetrahydro-beta-carboline HCl 9H-Pyrido(3,4-b)indole, 1,2,3,4-tetrahydro-3-methyl-6-methylthio-1- (3,4,5-trimethoxyphenyl)-, hydrochloride