3(2H)-Pyridazinone, 4,5-dihydro-4-hydroxy-4-methyl-2-(2-morpholinoethyl)-6-phenyl-, hydrochloride 33048-52-1 4,5-Dihydro-4-hydroxy-4-methyl-2-morpholinoethyl-6-phenyl-3(2H)-pyridazone hydrochloride AG 262