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1-Hexylpiperazine51619-55-732 % similar 1-Octylpiperazine54256-45-032 % similar 1-(2-Diisopropylaminoethyl)piperazine59955-93-032 % similar 1-Decylpiperazine63207-03-432 % similar 1-Heptylpiperazine82502-77-032 % similar 1-Piperazineethanol103-76-432 % similar Aminoethylpiperazine140-31-832 % similar 1-Methylpiperazine dihydrochloride34352-59-532 % similar 4-[(2,6-Dimethylphenyl)aminocarbonylmethyl]piperazine5294-61-132 % similar 4-Piperazin-1-ylmethyl-benzoic acid methyl ester86620-81-732 % similar tert-Butyl piperazine-1-carboxylate57260-71-632 % similar 1-(2-Ethoxyethyl)piperazine13484-38-331 % similar N'-(2-Diethylaminoethyl)ethane-1,2-diamine24426-16-231 % similar 1-Methyl-3-oxopiperazine34770-60-031 % similar Piperazine-1-sulfonic acid dimethylamide98961-97-831 % similar 1-Methylhomopiperazine4318-37-031 % similar 4-(2-Piperazin-1-yl-ethyl)-morpholine4892-89-131 % similar N-Methyl-2-pyrrolidone872-50-431 % similar N-(4-Aminophenyl)-N,4-dimethyl-1-piperazineacetamide262368-30-931 % similar 1-(N-Methylpiperidin-3-yl-methyl)piperazine496808-03-831 % similar