1-Methyl-2-carboxy-3-(3-pyridylmethoxymethyl)indole hydrochloride 1H-Indole-2-carboxylic acid, 3-(methoxy-3-pyridinylmethyl)-1-methyl-, monohydrochloride 3-(Methoxy-3-pyridinylmethyl)-1-methyl-1H-indole-2-carboxylic acid monohydrochloride 67748-98-5