29285-88-9 3(2H)-Pyridazinone, 6-(m-ethoxyphenyl)-4-methyl-2-(2-morpholinoethyl)-, hydrochloride 6-(m-Ethoxyphenyl)-4-methyl-2-(2-morpholinoethyl)-3(2H)-pyridazinone hydrochloride AG 280 Morpholinoethyl-2 methyl-4 (m-ethoxyphenyl)-6 pyridazone-3 chlorohydrate [French]