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1-Methyl-3-oxopiperazine34770-60-034 % similar Piperazine-1-carboxylic acid dimethylamide41340-78-734 % similar 1,4′-Bipiperidine, hydrochloride (1:2)4876-60-234 % similar Piperazine-1-sulfonic acid dimethylamide98961-97-834 % similar 1-Methyl-4-(phenylmethyl)piperazine hydrochloride (1:1)374898-00-734 % similar 1-(4-Fluorophenyl)piperazine dihydrochloride64090-19-334 % similar 1-(4-Bromophenyl)piperazine monohydrochloride68104-62-134 % similar 1-Methylisonipecotic acid hydrochloride71985-80-334 % similar 1-[2(2-Hydroxyethoxy)ethyl]piperazine dihydrochloride85293-16-934 % similar 1-(3-Methylphenyl)piperazine dihydrochloride13078-13-234 % similar 3-(Methylamino)piperidine dihydrochloride127294-77-333 % similar 1-(3,4-Dimethoxyphenyl)piperazine hydrochloride16015-72-833 % similar 1-Cyclopropylpiperazine20327-23-533 % similar 1-[2-(1-Pyrrolidinyl)ethyl]piperazine22763-69-533 % similar Cyclizine hydrochloride303-25-333 % similar Triethylenetetramine dihydrochloride38260-01-433 % similar N1-[3-(Dimethylamino)propyl]-N1,N3,N3-trimethyl-1,3-propanediamine3855-32-133 % similar Cuprior4961-40-433 % similar N-Isobutyl piperazine5308-28-133 % similar 1-(2-Methoxyphenyl)piperazine hydrochloride5464-78-833 % similar