1907-86-4 5-(4-(Diethylamino)-2-butynyl)-5-ethylbarbituric acid hydrochloride 5-Ethyl-5-(4-diethylamino-2-butynyl)barbituric acid hydrochloride BARBITURIC ACID, 5-(4-(DIETHYLAMINO)-2-BUTYNYL)-5-ETHYL-, HYDROCHLORIDE