1H-Indol-5-ol, 3-(2-(4-amino-1-piperidinyl)ethyl)-, hydrochloride, hydrate (2:4:1) 3-(2-(4-Amino-1-piperidinyl)ethyl)-1H-indol-5-ol hydrochloride hydrate (2:4:1) 3-(2-(4-Aminopiperid-1-yl)ethyl)-5-hydroxyindole dihydrochloride hemihydrate 35633-80-8