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1-Piperazinecarboxaldehyde7755-92-2100 % similar 1-Formylhomopiperazine29053-62-181 % similar 1,4-Piperazinedicarboxaldehyde4164-39-061 % similar 1-Pyrrolidinecarboxaldehyde3760-54-155 % similar N-Formylpiperidine2591-86-852 % similar N-Formylmorpholine4394-85-848 % similar N,N-Dibutylformamide761-65-944 % similar Diethylformamide617-84-539 % similar 1-tert-Butylpiperazine38216-72-736 % similar 1-Formylisonipecotic acid84163-42-835 % similar Methylpiperazine109-01-335 % similar 1-Allylpiperazine13961-36-933 % similar 1-Cyclopropylpiperazine20327-23-533 % similar 1-[2-(1-Pyrrolidinyl)ethyl]piperazine22763-69-533 % similar 2-Piperazin-1-yl-benzaldehyde736991-52-932 % similar 1-Acetylpiperazine13889-98-032 % similar 1-Methanesulfonyl-piperazine55276-43-232 % similar 1-(2-Piperidinoethyl)piperazine22763-65-132 % similar 1-Ethylpiperazine5308-25-832 % similar 1-(1-Piperidinylsulfonyl)piperazine500587-48-431 % similar