1,2-Dimethyl-3-ethoxycarbonyl-4-dimethylaminomethyl-5-hydroxyindole hydrochloride 16200-02-5 Ethyl 1,2-dimethyl-4-((dimethylamino)methyl)-5-hydroxyindole-3-carboxylate hydrochloride Indole-3-carboxylic acid, 1,2-dimethyl-4-((dimethylamino)methyl)-5-hydroxy-, ethyl ester, monohydrochloride