64622-41-9 BF DEAE BF-DEAE Benzeneacetic acid, alpha-methyl-4-(2-methylpropyl)-, 2-(diethylamino)ethyl ester Brufen diethylaminoethyl ester Diethylaminoethyl alpha-methyl-4-(2-methylpropyl)benzene acetate Ibuprofen diethylaminoethyl ester