3(2H)-Benzo(h)cinnolinone, 5,6-dihydro-4-methyl-2-(2-morpholinoethyl)-, hydrochloride 33048-49-6 5,6-Dihydro-4-methyl-2-(2-morpholinoethyl)-3(2H)-benzo(h)cinnolinone hydrochloride AG 279 G 279