40680-90-8 5-BENZOFURANMETHANOL, 4,7-DIMETHOXY-6-(2-(DIMETHYLAMINO)ETHOXY)-alpha-(2-(4-PROP 5-Benzofuranmethanol, 4,7-dimethoxy-6-(2-(dimethylamino)ethoxy)-alpha- (2-(4-propoxyphenyl)ethyl)-, oxalate (1:1) (salt)