N-Acetylhomopiperazine61903-11-531 % similar 3-Pyrrolidinone96-42-431 % similar Ethyl 1-piperazinecarboxylate120-43-431 % similar 1-Methyl-4-piperidone1445-73-430 % similar 2-Chloro-N,N-dimethylacetamide2675-89-030 % similar 1-Methylpiperazine dihydrochloride34352-59-530 % similar Ethylenediaminediacetic acid5657-17-030 % similar N,N-Dimethylpropionamide758-96-330 % similar