![Piperazine, 1-[(4-chlorophenyl)(1-naphthalenylimino)methyl]-3-methyl-,(2Z)-2-butenedioate (1:1)](/structure/912563-66-7.png)
Piperazine, 1-[(4-chlorophenyl)(1-naphthalenylimino)methyl]-3-methyl-,(2Z)-2-butenedioate (1:1)
![Piperazine, 1-[(4-chlorophenyl)(1-naphthalenylimino)methyl]-3-methyl-,(2Z)-2-butenedioate (1:1)](/structure/912563-66-7.png)
Piperazine, 1-[(4-chlorophenyl)(1-naphthalenylimino)methyl]-3-methyl-,(2Z)-2-butenedioate (1:1)
![Piperazine,1-(2,3-dihydro-1,4-benzodioxin-5-yl)-4-[(2,3-dihydro-1,4-benzodioxin-2-yl)methyl]-](/structure/157833-66-4.png)
Piperazine,1-(2,3-dihydro-1,4-benzodioxin-5-yl)-4-[(2,3-dihydro-1,4-benzodioxin-2-yl)methyl]-
![2,5-Piperazinedione,3-[[2-(1,1-dimethyl-2-propenyl)-5,7-bis(3-methyl-2-butenyl)-1H-indol-3-yl]methylene]-6-methylene-, (3Z)-](/structure/64361-66-6.png)

1-Piperazinecarboxylic acid, 4-methyl-,2-(2-cyano-4-pyrimidinyl)-2-(2-methylpropyl)hydrazide
![1-Piperazinecarboxamide,4-[2-amino-6-(3,4-dimethoxyphenyl)-4-pteridinyl]-N-(4-bromophenyl)-](/structure/923941-66-6.png)
1-Piperazinecarboxamide,4-[2-amino-6-(3,4-dimethoxyphenyl)-4-pteridinyl]-N-(4-bromophenyl)-

5-OXO-L-PROLINE COMPOUND WITH 4-(4-TERT-BUTYLBENZYL)-1-(4-CHLOROBENZHYDRYL)PIPERAZINE

![Piperazine,1-[3-(ethylamino)-2-pyridinyl]-4-[(5-methoxy-1H-indol-2-yl)carbonyl]-,monohydrochloride](/structure/136816-66-5.png)
Piperazine,1-[3-(ethylamino)-2-pyridinyl]-4-[(5-methoxy-1H-indol-2-yl)carbonyl]-,monohydrochloride

1-Piperazineacetic acid, 4-phenyl-, 2-(1-methylethyl)hydrazide
![PIPERAZINE, 4-BENZOYL-1-[1,2-DIOXO-2-(1H-PYRROLO[2,3-B]PYRIDIN-3-YL)ETHYL]-2-METHYL-, (2S)-](/structure/357262-66-9.png)
PIPERAZINE, 4-BENZOYL-1-[1,2-DIOXO-2-(1H-PYRROLO[2,3-B]PYRIDIN-3-YL)ETHYL]-2-METHYL-, (2S)-
![Piperazine, 1-[2-(2,4-difluorophenyl)ethyl]-](/structure/364594-66-1.png)
![(z)-but-2-enedioic Acid;1-(1-chloro-5,6-dihydrobenzo[b][1]benzothiepin-5-yl)-4-methylpiperazine](/structure/4789-66-6.png)
(z)-but-2-enedioic Acid;1-(1-chloro-5,6-dihydrobenzo[b][1]benzothiepin-5-yl)-4-methylpiperazine