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1-(3-Diethylaminopropyl)piperazine22764-55-2 1-(3-Hydroxyphenyl)piperazine59817-32-2 1-(4-Ethoxyphenyl)piperazine46415-29-6 1-(4-Methyl-2-pyridinyl)piperazine34803-67-3 1-(5-Chloro-2-methoxyphenyl)piperazine hydrochloride99857-72-4 1-(5-Chloro-2-methylphenyl)piperazine76835-20-6 1-[(4-Fluorophenyl)methyl]hexahydro-1H-1,4-diazepine76141-89-4 1-[2-(Trifluoromethyl)phenyl]piperazine63854-31-9 1-Benzoylpiperazine13754-38-6 1-Benzylpiperazine2759-17-3 1-Butylpiperazine5610-49-1 1-Cyclopentylpiperazine21043-40-3 1-Decylpiperazine63207-03-4 1-Methylpiperazin-2-one59702-07-7 1-Octylpiperazine54256-45-0 1-Piperazinylpyrazine34803-68-4 1-tert-Butylpiperazine38216-72-7 1,1-Dimethylethyl (2R)-2-ethyl-1-piperazinecarboxylate393781-70-9 1,1-Dimethylethyl N-(hexahydro-1H-azepin-4-yl)carbamate454451-28-6 1,2-Diazaspiro[2.5]octane185-79-5