3-Benzofurancarboxylic acid, 4-((dimethylamino)methyl)-5-hydroxy-2-(4-methoxyphenyl)-, ethyl ester, hydrochloride DF6492220 Ethyl 4-((dimethylamino)methyl)-5-hydroxy-2-(4-methoxyphenyl)-3-benzofurancarboxylate HCl