Piperazine e Impurezas

[4-(4-Methoxy-quinazolin-2-yl)-piperazin-1-yl]-(2-nitro-phenyl)-methanone

1-[(6-hydrazinylpyridin-3-yl)sulfonyl]-4-methylpiperazine

1-[(1-phenyl-1h-1,2,3,4-tetrazol-5-yl)methyl]piperazine dihydrochloride

3,4-dimethyl-4'-(4-methylpiperazinomethyl) benzophenone

1-[4-(4-bromophenyl)piperazin-1-yl]ethanone

2-(4-(Tert-butoxycarbonyl)piperazine-1-carbonyl)cyclopropane-1-carboxylic acid

3-(4-Benzylpiperazin-1-yl)benzonitrile

7-(2-fluorophenyl)-2-[4-(2-fluorophenyl)piperazin-1-yl]-1H,4H-thieno[3,2-d]pyrimidin-4-one

2-(4-(Naphthalen-2-ylsulfonyl)piperazin-1-yl)pyrimidine

4-(2-Chloro-thiazol-5-ylmethyl)-piperazine-1,3-dicarboxylic acid 1-tert-butyl ester

4-Methyl-N-[2-(piperazin-1-yl)ethyl]benzene-1-sulfonamide dihydrochloride

1-[5-fluoro-2-(4-methylpiperazin-1-yl)phenyl]Ethylamine

6-(piperazine-1-carbonyl)-1H-1,3-benzodiazole hydrochloride

1-(4-(4-(Aminomethyl)phenyl)piperazin-1-yl)ethan-1-one

4-(Benzo[d][1,3]dioxol-5-ylmethyl)-N-cyclohexylpiperazine-1-carboxamide

Ethyl 2-[4-(benzenesulfonyl)piperazin-1-yl]acetate

3-Amino-1-(4-ethylpiperazin-1-yl)propan-1-one

4-Methyl-n-(1-methylpiperidin-4-yl)piperazin-1-amine

Cyclopropyl-(6-piperazin-1-yl-pyrimidin-4-yl)-amine hydrochloride

1-((2-Nitrophenyl)sulfonyl)-4-(pyridin-2-yl)piperazine