40680-91-9 5-BENZOFURANMETHANOL, alpha-(2-(4-BUTOXYPHENYL)ETHYL)-4,7-DIMETHOXY-6-(2-(DIMETH 5-Benzofuranmethanol, alpha-(2-(4-butoxyphenyl)ethyl)-4,7-dimethoxy-6-(2-(dimethylamino)ethoxy)-, oxalate (1:1) (salt)