N-Isobutyl piperazine5308-28-135 % similar 1-(4-Methoxybenzoyl)-piperazine94747-49-635 % similar N,N-Dimethyl-2-(piperazin-1-yl)acetamide39890-43-234 % similar 1-((Pyrrolidine-1-carbonyl)methyl)piperazine39890-45-434 % similar 1-(Butan-2-yl)piperazine34581-21-033 % similar Benzoylpiperazine hydrochloride56227-55-533 % similar 1-(2-Diisopropylaminoethyl)piperazine59955-93-033 % similar 1-Boc-piperazine acetate143238-38-433 % similar 1-(2-Furoyl)piperazine40172-95-033 % similar 2-(Piperazin-1-yl)-acetic acid H2O37478-58-332 % similar 1-Methylpiperazin-2-one59702-07-732 % similar Methylpiperazine109-01-332 % similar 1-(2-Chloro-benzoyl)-piperazine13754-45-532 % similar Benzyl piperazine-1-carboxylate31166-44-632 % similar 4-(1-Piperazinylacetyl)morpholine39890-46-532 % similar Ethyl piperazine-1-acetate40004-08-832 % similar 3-Piperazin-1-yl-propionic acid27245-31-431 % similar 1-Butylpiperazine5610-49-131 % similar 2,6-Dimethyl-3,5-heptanedione18362-64-631 % similar 1-Cyclopropylpiperazine20327-23-531 % similar