4-(4-Chlorophenyl)-2-[4-(3-chlorophenyl)piperazin-1-yl]-4-oxobutanoic acid CAS 139084-71-2
| CAS No. | 139084-71-2 |
| Molecular Formula | C20H20Cl2N2O3 |
| Molecular Weight | 407.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies 4-(4-Chlorophenyl)-2-[4-(3-chlorophenyl)piperazin-1-yl]-4-oxobutanoic acid (CAS 139084-71-2), a certified reference material (molecular formula C20H20Cl2N2O3, MW 407.29 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H20Cl2N2O3, 4-(4-Chlorophenyl)-2-[4-(3-chlorophenyl)piperazin-1-yl]-4-oxobutanoic acid contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 407.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 4-(4-Chlorophenyl)-2-[4-(3-chlorophenyl)piperazin-1-yl]-4-oxobutanoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H20Cl2N2O3 |
| Molecular Weight | 407.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlorophenyl Standards
- N-(4-Chlorophenyl)-2-((5-(4-chlorophenyl)-4-ethyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332934-44-8)
- [2-[4-[(4-Chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]acetyl Chloride (CAS 776284-33-4)
- 1-(4-Chlorophenyl)-2-((5-(4-pentylcyclohexyl)-1,3,4-oxadiazol-2-yl)thio)ethan-1-one (CAS 860610-97-5)
- 3-(4-(3-Chlorophenyl)piperazin-1-yl)-1,1-diphenylpropan-2-ol (CAS 734517-40-9)
- Methyl 2-{[11-(4-chlorophenyl)-12-oxo-7-thia-9,11-diazatricyclo[6.4.0.0,2,6]dodeca-1(8),2(6),9-trien-10-yl]sulfanyl}acetate (CAS 676581-53-6)
- N-(4-(4-chlorophenyl)thiazol-2-yl)-2-(m-tolylsulfonyl)acetamide (CAS 338959-67-4)
- N-(4-chlorophenyl)-1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 338754-56-6)
- N-(4-chlorophenyl)-1-(2,6-dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 339008-62-7)
Recommended Standards
- N-(4-Bromophenyl)-2-((4-ethyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 618412-90-1)
- (E)-Dichlorodenafil, >98% (CAS 1469486-82-5)
- N-(3-Bromophenyl)-2-((4-ethyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 573709-48-5)
- 2-(2-(4-(3,4-Dichlorophenyl)piperazin-1-yl)ethyl)-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one (CAS 860611-78-5)
- 4-(4-Bromophenyl)-3-nitro-pyridine (CAS 942598-33-6)
- 2-(2-Bromophenyl)-2,2-difluoroacetic Acid (CAS 1375472-90-4)
- 1-{4-[(2,4-Dichlorobenzyl)oxy]phenyl}-1-ethanol (CAS 61292-28-2)
- Ethyl 3-amino-8-bromoimidazo[1,2-a]pyridine-2-carboxylate (CAS 1505180-14-2)
- (3-Ethyl-4-methylphenyl)boronic acid (CAS 1313617-56-9)
- 5-(2-Ethoxyphenyl)-3-hydrazono-2,3-dihydro-1H-1,2,4-triazole (CAS 299440-08-7)
- 2-Amino-5-(trifluoromethyl)phenylboronic Acid Pinacol Ester (CAS 1058062-64-8)
- 6-Allyl-5-methyl-3-phenyl-N-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 900875-59-4)
- 1-(2-Methylpyridin-3-yl)propan-1-one (CAS 31931-62-1)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com