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| Cat. # | Description | CAS # | 
| CA-2044 | 4-(4-Acetyl-1-piperazinyl)phenylboronic acid pinacol ester | 1218791-38-8 | 
| CA-0933 | 1-[4-(Aminosulfonyl)anilinoformyl]-4-benzylpiperazine | 1032229-27-8 | 
| CA-0934 | 1-[4-(Aminosulfonyl)anilinoformyl]-4-(2-trifluoromethylbenzyl)piperazine | 1032229-30-3 | 
| CB-0315 | (S)-1,4-Benzodioxan-2-carboxypiperazine | 401941-54-6 | 
| CB-1139 | 4-N-Benzyl-2-(hydroxymethyl)piperazine | 85817-34-1 | 
| CB-2612 | 1-Benzyl-3-isopropylpiperazine | 851014-13-6 | 
| CB-1929 | 1-Benzyl-4-(3-nitropyridin-2-yl)piperazine | 499771-07-2 | 
| CB-1161 | 1-N-Benzyl-2-phenylpiperazine | 5368-33-2 | 
| CB-1162 | 1-N-Benzyl-3-phenylpiperazine | 5368-32-1 | 
| CB-1164 | 1-N-Boc-4-(4-aminophenyl)piperazine | 170911-92-9 | 
| CB-3265 | 1-N-Boc-aminopiperazine | 147081-80-9 | 
| CB-0972 | 1-N-Boc-4-azetidine-3-piperazine | 219725-67-4 | 
| CB-3217 | 1-N-Boc-4-(2-tert-butoxy-2-oxoethyl)piperazine | 180576-04-9 | 
| CB-1930 | 1-N-Boc-4-butylpiperazine | 412293-87-9 | 
| CB-1931 | 1-N-Boc-4-(carboxymethyl)piperazine | 156478-71-6 | 
| CB-2613 | 1-N-Boc-4-(carbamothioyl)piperazine | 196811-66-2 | 
| CB-2125 | 1-N-Boc-3-cyanopiperazine | 859518-35-7 | 
| CB-1932 | 1-N-Boc-4-(ethoxycarbonylmethyl)piperazine | 209667-59-4 | 
| CB-2976 | 1-N-Boc-4-(2-formylphenyl)piperazine | 174855-57-3 | 
| CB-3484 | 1-N-Boc-4-(4-formylphenyl)piperazine | 197638-83-8 | 
| CB-1229 | 1-N-Boc-2-(hydroxymethyl)piperazine | 205434-75-9 | 
| CB-1140 | 1-N-Boc-3-(hydroxymethyl)piperazine | 301673-16-5 | 
| CB-0682 | (R)-1-N-Boc-2-(hydroxymethyl)piperazine | 169448-87-7 | 
| CB-0683 | (S)-1-N-Boc-2-(hydroxymethyl)piperazine | 1030377-21-9 | 
| CB-0684 | (R)-1-N-Boc-3-(hydroxymethyl)piperazine | 278788-66-2 | 
| CB-0685 | (S)-1-N-Boc-3-(hydroxymethyl)piperazine | 314741-40-7 | 
| CB-1904 | 1-N-Boc-4-(1H-indazol-3-yl)piperazine | 947498-81-9 | 
| CB-3389 | 1-N-Boc-4-(1H-indol-3-yl)piperazine | 947498-87-5 | 
| CB-3646 | 1-N-Boc-4-(3-(isopropylamino)pyridin-2-yl)piperazine | 136818-14-9 | 
| CB-3333 | 1-N-Boc-4-(4-nitrophenyl)piperazine | 182618-86-6 | 
| CB-1936 | 1-N-Boc-4-(3-nitropyridin-2-yl)piperazine | 153473-24-6 | 
| CB-0021 | 4-N-Boc-2-oxo-piperazine | 76003-29-7 | 
| CB-1141 | 4-N-Boc-2-oxo-piperazine-1-acetic acid | 549506-47-0 | 
| CB-4156 | 1-N-Boc-5-oxopiperazine-2-carboxylic acid | 1246553-28-5 | 
| CB-4157 | 4-N-Boc-6-oxopiperazine-2-carboxylic acid | 888220-71-1 | 
| CB-4151 | (R)-1-N-Boc-5-oxopiperazine-2-carboxylic acid | 1191885-45-6 | 
| CB-4152 | (S)-1-N-Boc-5-oxopiperazine-2-carboxylic acid | 1033713-11-9 | 
| CB-4153 | (R)-4-N-Boc-6-oxopiperazine-2-carboxylic acid | 1240583-92-9 | 
| CB-4154 | (S)-4-N-Boc-6-oxopiperazine-2-carboxylic acid | 1240586-09-7 | 
| CB-0203 | (R)-(-)-4-N-Boc-piperazine-2-carboxyl-tert-butylamide | 171866-36-7 | 
| CB-0313 | (R)-1-N-Boc-piperazine-3-carboxylic acid methyl ester | 438631-77-7 | 
| CB-0314 | (S)-1-N-Boc-piperazine-3-carboxylic acid methyl ester | 314741-39-4 | 
| CB-0336 | 1-N-Boc-3-(piperazin-1-yl)azetidine | 178311-48-3 | 
| CB-4099 | 3-(4-Boc-piperazin-1-yl)benzoic acid | 193818-13-2 | 
| CB-3088 | 4-(4-N-Boc-1-piperazinylcarbonyl)phenylboronic acid pinacol ester | 864754-13-2 | 
| CB-2256 | 1-N-Boc-4-(piperazin-1-yl)piperidine | 177276-41-4 | 
| CB-2137 | 1-N-Boc-4-(piperidin-4-yl)piperazine | 205059-24-1 | 
| CB-2175 | 1-N-Boc-4-(pyrrolidin-3-yl)piperazine | 885959-36-4 | 
| CB-2803 | 1-(4-Bromobenzoyl)-4-methylpiperazine | 349395-87-5 | 
| CB-0883 | 1-(5-Bromopyridin-2-yl)piperazine | 73406-97-0 | 
| CB-3320 | [6-(4-(tert-Butoxycarbonyl)piperazin-1-yl]-5-methylpyridin-3-ylboronic acid | 1379476-75-1 | 
| CB-2068 | tert-Butyl piperazin-1-yl-acetate dihydrochloride | 827614-56-2 | 
| CC-0060 | 1-N-Cbz-4-N-Boc-2-(aminomethyl)piperazine | 317365-34-7 | 
| CC-0061 | 1-N-Cbz-4-N-Boc-2-cyanopiperazine | 955016-62-3 | 
| CC-0062 | 1-N-Cbz-3-cyanopiperazine | 1071827-03-6 | 
| CC-1119 | 4-Cbz-piperazin-2-one | 78818-15-2 | 
| CC-1008 | 1-(6-Chloropyridazino-3-yl)piperazine | 56392-83-7 | 
| CC-0786 | 2-Cyanopiperazine | 187589-36-2 | 
| CC-1324 | N-Cyclopropyl-2-(1-piperazinyl)nicotinamide hydrochloride | 902836-65-1 | 
| CD-0812 | 1,4-Diacetyl-2,5-piperazinedione | 3027-05-2 | 
| CD-1805 | 1-(4,4'-Dichlorobenzhydryl)piperazine | 27469-61-0 | 
| CD-0591 | N,N-Dimethyl-2-(1-piperazinyl)nicotinamide hydrochloride | 902836-08-2 | 
| CD-1250 | 1-(3,4-Dimethoxyphenethyl)-4-(3-phenylpropyl)piperazine dihydrochloride | 165377-44-6 | 
| CD-0807 | N-(2,6-Dimethylphenyl)-1-piperazineacetamide | 5294-61-1 | 
| CD-0049 | 3,3-Dimethylpiperazin-2-one | 22476-74-0 | 
| CE-0204 | 1-(2-Ethoxyphenyl)piperazine hydrochloride | 83081-75-8 | 
| CE-0643 | 5-[(4-Ethylpiperazin-1-yl)methyl]pyridin-2-amine | 1180132-17-5 | 
| CF-0877 | 1-(4-Fluorobenzyl)piperazine | 70931-28-1 | 
| CF-0236 | 1-(4-Fluorophenyl)piperazine hydrochloride | 64090-19-3 | 
| CF-1463 | 1-(4-Fluoro-2-nitrophenyl)piperazine | 243128-46-3 | 
| CF-0269 | 1-(2-Furoyl)piperazine | 40172-95-0 | 
| CF-0317 | 1-(2-Furanylcarbonyl)piperazine hydrochloride | 60548-09-6 | 
| CH-0390 | HEPPS | 10652-06-5 | 
| CH-0106 | HEPPSO | 68399-78-0 | 
| CH-0851 | 1-(4-Hydroxyphenyl)piperazine | 56621-48-8 | 
| CM-0670 | 1-Methanesulfonylpiperazine | 55276-43-2 | 
| CM-2033 | 1-(3-Methoxybenzyl)-4-methylpiperazine | 414879-55-3 | 
| CM-2034 | 1-(4-Methoxybenzyl)-4-methylpiperazine | 414879-57-5 | 
| CM-0811 | 2-Methoxy-4-(piperazin-1-yl)phenol | 925889-93-6 | 
| CM-2035 | 1-Methyl-4-(1,4-dioxaspiro[4.5]decan-8-yl)piperazine | 155778-83-9 | 
| CM-0481 | 1-Methyl-4-phenylpiperazine | 3074-43-9 | 
| CM-1828 | 4-Methyl-1-piperazineacetic acid | 54699-92-2 | 
| CM-1074 | 3-(N-Methylpiperazine)propyl bromide dihydrbromide | 5845-29-4 | 
| CM-0755 | 4-(4-Methylpiperazino)aniline | 16153-81-4 | 
| CM-0415 | 3-Methylpiperazin-2-one | 23936-11-0 | 
| CM-2215 | 2-(4-Methylpiperazino)pyridine-5-boronic acid pinacol ester | 918524-63-7 | 
| CM-0756 | 2-(4-Methyl-1-piperazinyl)aniline | 180605-36-1 | 
| CM-2268 | 3-(4-Methylpiperazin-1-yl)benzaldehyde | 628325-62-2 | 
| CM-0757 | 1-[2-(4-Methyl-1-piperazinyl)]benzenemethanamine | 655256-68-1 | 
| CM-0758 | 3-(4-Methyl-1-piperazinyl)benzenemethanamine | 672325-37-0 | 
| CM-2263 | 2-(4-Methylpiperazin-1-yl)benzoic acid | 159589-70-5 | 
| CM-0762 | 4-(4-Methylpiperazin-1-yl)benzoic acid | 86620-62-4 | 
| CM-0788 | 2-(4-Methylpiperazin-1-yl)benzyl alcohol | 123987-12-2 | 
| CM-2036 | 4-(4-Methylpiperazin-1-yl)cyclohexanone | 155778-84-0 | 
| CM-0813 | 4-[(4-Methylpiperazinyl)methyl]benzoic acid | 106261-48-7 | 
| CM-2037 | 4-[(4-Methylpiperazin-1-yl)methyl]benzonitrile | 125743-63-7 | 
| CM-2230 | 3-[(4-Methylpiperazin-1-yl)methyl]phenylboronic acid | 883738-27-0 | 
| CM-2107 | 4-(4-Methylpiperazin-1-yl)phenylboronic acid | 229009-40-9 | 
| CM-2258 | 4-(4-Methylpiperazin-1-yl)phenylboronic acid pinacol ester | 747413-21-4 | 
| CM-0760 | 5-(4-Methylpiperazin-1-yl)-2-nitroaniline | 23491-48-7 | 
| CM-1526 | 3-(4-Methylpiperazin-1-yl)propanoic acid hydrochloride | 775349-40-1 | 
| CM-0873 | 5-(4-Methylpiperazin-1-yl)-1H-1,2,4-triazol-3-amine | 89292-91-1 | 
| CM-0479 | 1-(6-Methylpyridin-3-yl)piperazine | 845617-33-6 | 
| CM-1223 | 3-Methyl-1-(pyridin-2-yl)piperazine hydrochloride | 1420956-05-3 | 
| CM-2038 | 1-Methyl-4-[4-(trifluoromethyl)benzyl]piperazine | 201682-15-7 | 
| CN-0052 | 1-(3-Nitrophenyl)piperazine | 54054-85-2 | 
| CN-0480 | 1-(3-Nitropyridin-2-yl)piperazine | 87394-48-7 | 
| CO-0150 | 5-Oxopiperazine-2-carboxylic acid | 3262-59-7 | 
| CO-0151 | 6-Oxopiperazine-2-carboxylic acid | 1246552-66-8 | 
| CO-0054 | (R)-5-Oxopiperazine-2-carboxylic acid | 1240590-31-1 | 
| CO-0055 | (S)-5-Oxopiperazine-2-carboxylic acid | 135630-97-6 | 
| CO-0056 | (R)-6-Oxopiperazine-2-carboxylic acid | 12400590-33-3 | 
| CO-0057 | (S)-6-Oxopiperazine-2-carboxylic acid | 1240584-74-0 | 
| CP-0347 | Piperazine-2-acetic acid methyl ester dihydrochloride | 394709-83-2 | 
| CP-0244 | 2-Piperazine-4-amino-6,7-dimethoxyquinazoline | 60547-97-9 | 
| CP-1118 | 4,4'-Piperazine-1,4-diyldianiline | 7479-12-1 | 
| CP-0408 | 4-Piperazinobenzonitrile | 68104-63-2 | 
| CP-1134 | 6-Piperazinonicotinonitrile | 149554-29-0 | 
| CP-0087 | 4-(Piperazin-1-yl)benzoic acid | 85474-75-5 | 
| CP-0032 | 4-Piperazinylphenylboronic acid pinacol ester | 912369-50-7 | 
| CP-0924 | 3-Piperazin-1-yl-propan-1-ol dihydrochloride | 6427-02-7 | 
| CP-1005 | 4-(Piperazin-1-yl)thieno[3,2-d]pyrimidine | 683274-67-1 | 
| CP-0850 | 1-(Piperazin-1-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one | 88053-13-8 | 
| CP-0077 | 1-n-Propylpiperazine dihydrobromide | 64262-23-3 | 
| CP-0080 | 1-[2-(2-Pyridinyl)ethyl]piperazine | 53345-15-6 | 
| CP-0297 | 1-Pyridin-3-yl-methyl-piperazine 
        hydrochloride | 510725-49-2 | 
| CP-0912 | 1-(4-Pyridyl)piperazine | 1008-91-9 | 
| CP-0233 | 1-(2-Pyridyl)piperazine hydrochloride | 129394-11-2 | 
| CS-0086 | 4-(4'-Sulfanilyl)-1-methylpiperazine | 21623-68-7 | 
| CT-0207 | 1-(2-Tetrahydrofuroyl)piperazine 
          hydrobromide | 63590-62-5 | 
| CT-0345 | 1-(2-Thiazolyl)piperazine 
        hydrochloride | 209733-13-1 | 
| CT-0346 | 1-(2-Thiazolyl)piperazine dihydrochloride | 492431-13-7 | 
| CT-0265 | 1-(2-Tolyl)piperazine hydrochloride | 70849-60-4 | 
| CT-0966 | 2-(4-o-Tolylpiperazin-1-yl)ethylamine | 58334-09-1 | 
| CT-1315 | 2-(4-Trifluoroacetylpiperazino)pyridine-5-boronic acid pinacol ester | 1218789-87-7 |