3-Methyl-2-phenylvaleric acid 2,2-dimethyl-3-(dimethylamino)propyl ester hydrochloride 95368-23-3 Benzeneacetic acid, alpha-(2-butyl)-, 2,2-dimethyl-3-(dimethylamino)propyl ester, HCl C 4238 Valeric acid, 3-methyl-2-phenyl-, 2,2-dimethyl-3-(dimethylamino)propyl ester, hydrochloride