2,2-Dimethylvaleric acid 2-(diethylamino)ethyl ester hydrochloride 25217-59-8 Pentanoic acid, 2,2-dimethyl-, 2-(diethylamino)ethyl ester, hydrochloride Valeric acid, 2,2-dimethyl-, 2-(diethylamino)ethyl ester, hydrochloride