2-((4-Methyl-1-piperazinyl)imino)-4'-nitroacetophenone hydrochloride 2-((N'-Methyl-N-piperazino)imino)-4'-nitroacetophenone hydrochloride 25561-57-3 ACETOPHENONE, 2-((4-METHYL-1-PIPERAZINYL)IMINO)-4'-NITRO-, HYDROCHLORIDE