2-Butylidene-1-(3'-(4''-methylpiperazinyl)propoxyimino)cyclohexane dihydrogen fumarate 78674-95-0 Cyclohexanone, 2-butylidene-, O-(3-(4-methyl-1-piperazinyl)propyl)oxime, (E)-2-butenedioate(1:2)