4-Methyl-2-phenylvaleric acid 2-(diethylamino)ethyl ester hydrochloride 99098-81-4 Pentanoic acid, 4-methyl-2-phenyl-, 2-(diethylamino)ethyl ester, hydrochloride Valeric acid, 4-methyl-2-phenyl-, 2-(diethylamino)ethyl ester, hydrochloride