1-Methyl-4,9-dihydro-3H-beta-carbolin-7-ol hydrochloride 2H-Pyrido[3,4-b]indol-7-ol, 3,4-dihydro-1-methyl- 3H-Pyrido[3,4-b]indol-7-ol, 4,9-dihydro-1-methyl- 525-57-5 (FREE BASE) 6028-00-8 (HCL) 6028-07-5 (HCL) AIDS-099662 AIDS099662 Harmalol NSC640461 (HYDROCHLORIDE SALT)