1-(4-Hydroxyphenyl)piperazine56621-48-8 1-(4-Methoxyphenyl)piperazine38212-30-5 1-(4-Methoxyphenyl)piperazine hydrochloride84145-43-7 1-(4-Methyl-2-pyridinyl)piperazine34803-67-3 1-(4-Methylphenyl)piperazine39593-08-3 1-(4-Nitrophenyl)piperazine6269-89-2 1-(4-Pyridyl)piperazine1008-91-9 1-(5-Chloro-2-methylphenyl)piperazine76835-20-6 1-(5-Isoquinolinylsulfonyl)-3-methylpiperazine dihydrochloride140663-38-3 1-(5-Isoquinolinylsulfonyl)piperazine84468-24-6 1-(5-Trifluoromethyl-pyridin-2-yl)-piperazine132834-58-3 1-(Chloromethyl)-N-[(chloromethyl)dimethylsilyl]-1,1-dimethylsilanamine14579-91-0 1-(Cyclopropylcarbonyl)piperazine Hydrochloride1021298-67-8 1-(Ethoxycarbonylmethyl)piperazine40004-08-8 1-(Methylamino)-4-[(1-methylethyl)amino]-9,10-anthracenedione15403-56-2 1-(Oxetan-3-yl)piperazine1254115-23-5 1-[(2,3-Dihydro-1,4-benzodioxin-2-yl)carbonyl]piperazine70918-00-2 1-[(4-Fluorophenyl)methyl]hexahydro-1H-1,4-diazepine76141-89-4 1-[(4-Hydrazinylphenyl)methyl]-1H-1,2,4-triazole hydrochloride (1:2)212248-62-9 1-[(4-Methylphenyl)sulfonyl]piperazine27106-51-0