1476-35-3 2-(Diethylamino)-N-(2,4-dimethylbenzyl)propionamide hydrochloride Propionamide, 2-(diethylamino)-N-(2,4-dimethylbenzyl)-, monohydrochloride alpha-Diethylamino-N-(2,4-dimethylbenzyl)propionamide hydrochloride