16200-04-7 4-((Diethylamino)methyl)-5-hydroxy-2-methyl-1-p-tolylindole-3-carboxylic acid ethyl ester HCl Indole-3-carboxylic acid, 4-((diethylamino)methyl)-5-hydroxy-2-methyl-1-p-tolyl-, ethyl ester, monohydrochloride