4-[5-(2,4-Dichlorophenyl)-1H-pyrazol-3-yl]-1-(2-nitrobenzenesulfonyl)piperidine CAS 1031236-58-4
| CAS No. | 1031236-58-4 |
| Molecular Formula | C20H18Cl2N4O4S |
| Molecular Weight | 481.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
4-[5-(2,4-Dichlorophenyl)-1H-pyrazol-3-yl]-1-(2-nitrobenzenesulfonyl)piperidine (CAS 1031236-58-4), molecular formula C20H18Cl2N4O4S and molecular weight 481.35 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-[5-(2,4-Dichlorophenyl)-1H-pyrazol-3-yl]-1-(2-nitrobenzenesulfonyl)piperidine (C20H18Cl2N4O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 481.35 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H18Cl2N4O4S |
| Molecular Weight | 481.35 g/mol |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Dichlorophenyl Standards
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Recommended Standards
- Ertugliflozin Impurity 52 (CAS CATO-C4X-301152)
- 10-(4-(1-Benzyl-1H-1,2,3-triazol-4-yl)phenyl)-3,7-diethyl-5,5-difluoro-5H-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-4-ium-5-uide (CAS 1217340-99-2)
- N-(3-(6-iodoimidazo[1,2-a]pyridin-2-yl)phenyl)thiophene-2-sulfonamide (CAS 685107-89-5)
- Abemaciclib Impurity 141 (CAS CATO-C4X-2937141)
- 2-Difluoromethoxy-4-fluorobenzotrifluoride (CAS 1806275-11-5)
- 3-Chloro-4-((3-fluorobenzyl)oxy)benzamide (CAS 1706445-87-5)
- 2-(Methylthio)-6-phenylpyrimidine-4-carboxylic acid (CAS 915963-25-6)
- 2-Amino-2-(4-bromo-2-fluorophenyl)acetic Acid (CAS 500696-05-9)
- 5-Amino-N-(4-(chlorodifluoromethoxy)phenyl)-1-(4-methoxybenzyl)-1H-1,2,3-triazole-4-carboxamide (CAS 524036-00-8)
- 3,5-Dichloro-1,2,4-triazine (CAS 59631-75-3)
- N-Isopropyl-2-(2-((2-(p-tolyloxy)ethyl)thio)-1H-benzo[d]imidazol-1-yl)acetamide (CAS 920116-45-6)
- 2-((5-(2-Hydroxyphenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(o-tolyl)propanamide (CAS 332126-55-3)
- 7-Chloro-N-[3-(trifluoromethyl)phenyl]-3,4-dihydro-2H-1,4-benzothiazine-4-carboxamide (CAS 338777-90-5)
- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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