1-Ethyl-4-(2-morpholinoethyl)-3,3-diphenyl-2-pyrrolidinone hydrochloride hydrate 1-Ethyl-4-(2-morpholinoethyl)-3,3-diphenyl-2-pyrrolidinone monohydrochloride monohydrate 2-Pyrrolidinone, 1-ethyl-4-(2-(4-morpholinyl)ethyl)-3,3-diphenyl-, monohydrochloride, monohydrate 2-Pyrrolidinone, 1-ethyl-4-(2-morpholinoethyl)-3,3-diphenyl-, monohydrochloride, monohydrate 7081-53-0 AHR 619 Doxapram hydrochloride [USAN:JAN] Doxapram hydrochloride hydrate Doxapram hydrochloride monohydrate Doxapram monohydrochloride monohydrate