2-(Diethylamino)ethyl ester of 4,4-diphenylcrotonic acid hydrochloride 4,4-Diphenylcrotonic acid 2-(diethylamino)ethyl ester hydrochloride 63992-55-2 CROTONIC ACID, 4,4-DIPHENYL-, 2-(DIETHYLAMINO)ETHYL ESTER, HYDROCHLORIDE