Piperazine e Impurezas

2,2-Dimethyl-3-(4-(4-nitrophenyl)piperazine-1-carbonyl)cyclopropane-1-carboxylic acid

1-(4-Amino-2-fluorophenyl)-4-methylpiperazin-2-one

(4-Benzylpiperazin-1-yl)(thiophen-2-yl)methanone

6-(4-Phenylpiperazine-1-carbonyl)cyclohex-3-ene-1-carboxylic acid

benzyl 2,2-dimethylpiperazine-1-carboxylate

4-[2-(methylamino)ethyl]piperazin-2-one

1-(4-Trifluoromethoxy-phenyl)-piperazin-2-one

(4-Ethylpiperazin-1-yl)(4-iodophenyl)methanone

(3-((4-Ethylpiperazin-1-yl)methyl)phenyl)boronic acid

2-Chloro-1-{4-[(2-chloro-6-fluorophenyl)methyl]piperazin-1-yl}ethan-1-one hydrochloride

(4-(2-Fluorophenyl)piperazin-1-yl)(morpholino)methanone

3-Methyl-2-(piperazin-1-yl)quinoline

4-(3-Chlorophenyl)-N-methylpiperazine-1-carbothioamide

1-((1-(2-Chlorophenyl)-1H-1,2,3-triazol-5-yl)methyl)piperazine dihydrochloride

(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)(3-methylthiophen-2-yl)methanone

1-[1-(4-Fluorophenyl)ethyl]piperazine hydrochloride

4-{[4-(pyridin-2-yl)piperazin-1-yl]methyl}-1,3-thiazol-2-amine

Ethyl 4-(3-phenylpropyl)piperazine-1-carboxylate

Tert-butyl 4-(2-chloropropanoyl)piperazine-1-carboxylate

tert-Butyl 4-(3-bromopyridin-2-yl)piperazine-1-carboxylate

1-(2,5-Dichloro-benzyl)-piperazine-2-carboxylic acid hydrochloride

1-[2-(4-Chloro-phenoxy)-ethyl]-piperazine

3-(4-(((9h-Fluoren-9-yl)methoxy)carbonyl)piperazin-1-yl)propanoic acid

Ethyl 3-nitro-4-[4-(2-hydroxyethyl)piperazin-1-yl]benzoate

1-Benzyl-4-(6-chloropyridin-2-yl)piperazine

4-[4-(aminomethyl)phenyl]piperazin-2-one hydrochloride

(S)-Piperazin-2-ylmethanol

4-[4-(aminomethyl)benzoyl]piperazin-2-one

1-(3,5-Dimethylcyclohexyl)-2-methylpiperazine

(R)-1-Ethyl-2-methyl-piperazine

1-((Tetrahydrofuran-2-yl)methyl)piperazine hydrochloride

1-[4-(Pyridin-4-ylmethoxy)-phenyl]-piperazine trihydrochloride

1-(4-(2-Hydroxyethyl)piperazin-1-yl)-2-phenylethan-1-one

(5-Bromo-2-fluoro-3-methylphenyl)(4-methylpiperazin-1-yl)methanone

1-(4-Amino-1-butyl)-4-benzyl-piperazine

2-(4-(4-Amino-2-chlorophenyl)piperazin-1-yl)ethan-1-ol

4-(Piperazin-1-yl)tetrahydro-2h-thiopyran 1,1-dioxide

4-(4-Fluorobenzenesulfonyl)piperazine-1-carbaldehyde

4-(3-aminopropyl)-2-piperazinone dihydrochloride

2-(4-(4-Methoxyphenyl)piperazin-1-yl)-N-(4-phenoxyphenyl)acetamide

1-(2,2-Dimethyl-[1,3]dioxolan-4-ylmethyl)-piperazine

2-(Piperazin-1-yl)butanoic acid

2-(Piperazine-1-carboximidoyl)guanidine trihydrochloride

n-(4-Chlorophenyl)-4-(2-fluorophenyl)piperazine-1-carboxamide

2-[4-(4-hydroxyphenyl)piperazin-1-yl]-N,N-dimethyl-2-phenylacetamide

3-(4-Acetylpiperazin-1-yl)propanenitrile

(3S)-4-Boc-1-carboxymethyl-3-benzyl-piperazin-2-one

[2-(4-methylpiperazin-1-yl)pyridin-3-yl]methanamine

1-Methyl-2-(piperazin-1-yl)-1h-benzo[d]imidazole

3-(2-(Piperazin-1-yl)pyrimidin-4-yl)-5-(trifluoromethyl)-1,2,4-oxadiazole dihydrochloride

ethyl 5-[2-(4-methylpiperazinomethyl)phenyl]-5-oxovalerate

5,7-Dimethyl-2-(piperazin-1-yl)benzo[d]thiazole

4,8-Dimethyl-2-(4-tosylpiperazin-1-yl)quinoline

(5-((4-Ethylpiperazin-1-yl)sulfonyl)-2-methylphenyl)boronic acid

N-(4-methoxyphenyl)-4-(4-nitrophenyl)piperazine-1-carboxamide

1,2,2-Trimethylpiperazine;hydrochloride

Methyl 3-(2-(4-(2-fluorophenyl)piperazin-1-yl)acetamido)thiophene-2-carboxylate

6-(4-Phenylpiperazin-1-yl)pyridin-3-amine

4-(6-Chloro-pyridin-3-ylmethyl)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester

Benzyl 4-(N-(2-bromoethyl)-N-(tert-butoxycarbonyl)sulfamoyl)piperazine-1-carboxylate

1-((2-Chloropyridin-3-yl)methyl)-4-isopropylpiperazine

1-{4-[(4-aminophenyl)methyl]piperazin-1-yl}ethan-1-one

1-(3-Diallylaminopropyl)piperazine

Tert-butyl 4-(1-aminocyclopentane-1-carbonyl)piperazine-1-carboxylate

[4-(4-AMINO-BENZOYL)-PIPERAZIN-1-YL]-(4-AMINO-PHENYL)-METHANONE

1-Benzyl 2-methyl piperazine-1,2-dicarboxylate hydrochloride

3,5-Dimethyl-1-(piperazin-1-yl)cyclohexane-1-carboxamide

4-(4-Cyano-pyridin-2-yl)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester

2-(4-(4-Chlorophenyl)piperazin-1-yl)-1-phenylethan-1-one

tert-Butyl 4-(thiophen-2-ylsulfonyl)piperazine-1-carboxylate

2-Methyl-2-(piperazin-1-yl)propan-1-ol

1-Ethyl-4-((4-nitrophenyl)sulfonyl)piperazine

2-Chloro-6-(4-methylpiperazino)pyridine

1-(2,2,2-Trifluoro-1-phenylethyl)piperazine

2-chloro-6-piperazin-1-yl-9H-purine dihydrochloride

1-(6-Methylpyridin-3-yl)piperazine

7-Bromo-4-(piperazin-1-yl)quinoline

2-(4-Chlorophenyl)-2-(piperazin-1-yl)acetamide

2-(4-Methyl-piperazin-1-yl)-propylamine

4-(6-Bromo-pyridin-2-yl)-piperazine-1,3-dicarboxylic acid 1-tert-butyl ester

1-[(2-methylpiperidin-1-yl)sulfonyl]piperazine

2-(2,6-Dimethylpiperazin-1-yl)acetonitrile

N-allyl-2-nitro-5-piperazin-1-ylaniline hydrochloride

2-(4-(Isopropylsulfonyl)piperazin-1-yl)ethan-1-amine

2-Fluoromethyl-piperazine-1-carboxylic acid tert-butyl ester hydrochloride

2-ISOPROPYLSULFONYL-5-(1-METHYLPIPERAZIN-4-YL)ANILINE

(R)-di-tert-Butyl 2-carbamoylpiperazine-1,4-dicarboxylate

1-[(3-methylthiophen-2-yl)methyl]piperazine dihydrochloride

2-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}ethanol

Tert-butyl 4-(3-amino-1,2,4-thiadiazol-5-yl)piperazine-1-carboxylate

(4-(4-Amino-2-chlorophenyl)piperazin-1-yl)(phenyl)methanone

1-Benzylpiperazine-2,5-dione

tert-Butyl 3-(piperazin-1-yl)propanoate

2-(4-(3-Chlorophenyl)piperazin-1-yl)-N-(4-phenoxyphenyl)acetamide

1-(2,6-Difluorobenzoyl)piperazine

2-Ethoxy-1-(piperazin-1-yl)ethan-1-one

1-(4-METHYL-PIPERAZIN-1-YL)-DODECAN-1-ONE

1-(2-phenylethyl)-2-piperazinone hydrochloride

n-(4-(4-Methylpiperazin-1-yl)phenyl)-3-(trifluoromethyl)benzamide

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