100347-60-2 3-BENZOFURANCARBOXYLIC ACID, 4-((DIMETHYLAMINO)METHYL)-5-HYDROXY-2-(p-TOLYLTHIO) 3-Benzofurancarboxylic acid, 4-((dimethylamino)methyl)-5-hydroxy-2-(p-tolylthio)-, ethyl ester, hydrochloride