1-Methyl-3,4-dihydro-beta-carboline-7-ol hydrochloride (monohydrate) 3H-Pyrido(3,4-b)indol-7-ol, 4,9-dihydro-1-methyl-, monohydrochloride 4,9-Dihydro-1-methyl-3H-pyrido(3,4-b)indol-7-ol hydrochloride 525-57-5 6028-07-5 CCRIS 7892 EINECS 227-898-9 Harmalol hydrochloride NSC 640461