1-Piperazineacetamide, N-cyclohexyl-4-methyl-, (Z)-2-butenedioate (1:2) 118989-75-6 Acetamide, N-cyclohexyl-2-(4-methyl-1-piperazinyl)-, (Z)-2-butenedioate (1:2) N-Cyclohexyl-2-(4-methyl-1-piperazinyl)acetamide dimaleate