1-(Butan-2-yl)piperazine34581-21-0100 % similar Isopropylpiperazine4318-42-752 % similar 1-Cyclopropylpiperazine20327-23-544 % similar 1-Cyclopentylpiperazine21043-40-341 % similar 1-(1-Methyl-4-piperidinyl)piperazine23995-88-240 % similar 1,2-Dimethyl-piperazine25057-77-640 % similar (2R)-1,2-Dimethylpiperazine623586-02-740 % similar 1-(Oxetan-3-yl)piperazine1254115-23-539 % similar 1-Cyclopropylpiperazine dihydrochloride139256-79-439 % similar 1-Cyclohexylpiperazine17766-28-839 % similar 1-Cycloheptylpiperazine21043-42-539 % similar 1-Cyclooctylpiperazine21043-43-639 % similar 1-(1-Phenylethyl)piperazine69628-75-738 % similar N-Isobutyl piperazine5308-28-138 % similar 1-Ethylpiperazine5308-25-837 % similar 1-Propylpiperazine21867-64-136 % similar 1-(2-Diisopropylaminoethyl)piperazine59955-93-035 % similar 4-(3-Methyl-piperidin-1-yl)-piperidine551923-14-935 % similar Methylpiperazine109-01-335 % similar N,N-Diethyl-2-(piperazin-1-yl)ethan-1-amine4038-92-034 % similar