4-(Benzenesulfonyl)-5-(4-chlorophenyl)-1-(2,4-difluorophenyl)-1H-pyrazole CAS 318951-65-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 318951-65-4 |
| Molecular Formula | C21H13ClF2N2O2S |
| Molecular Weight | 430.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(Benzenesulfonyl)-5-(4-chlorophenyl)-1-(2,4-difluorophenyl)-1H-pyrazole (CAS 318951-65-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H13ClF2N2O2S. Molecular weight: 430.85 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H13ClF2N2O2S |
| Molecular Weight | 430.85 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Benzenesulfonyl Standards
- (2E)-2-(Benzenesulfonyl)-3-(4-{[5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)prop-2-enenitrile (CAS 1025568-00-6)
- 3-(Benzenesulfonyl)-4-methyl-2-[(4-methylphenyl)sulfanyl]-6-phenylpyridine (CAS 343372-77-0)
- 2-(Benzenesulfonyl)-4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenol (CAS 338406-78-3)
- 4-(Benzenesulfonyl)-5-(3,4-dichlorophenyl)-1-phenyl-1H-pyrazole (CAS 318951-72-3)
- 1-Benzenesulfonyl-5-chloro-3-iodo-1H-pyrrolo[2,3-b]pyridine (CAS 1001414-09-0)
- Ethyl 2-({6-[(benzenesulfonyl)methyl]-2-phenylpyrimidin-4-yl}sulfanyl)acetate (CAS 303147-42-4)
- 3-(Benzenesulfonyl)-5-(3-methoxyphenyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine (CAS 685108-20-7)
- 7-(benzenesulfonyl)-4-chloro-6-iodo-7H-pyrrolo[2,3-d]pyrimidine (CAS 876343-09-8)
Recommended Standards
- YF-2 (CAS 1311423-89-8)
- 5-(4-Chlorophenyl)-3-(4-methoxyphenyl)-1-(4-(trifluoromethyl)phenyl)-4,5-dihydro-1H-pyrazole (CAS 551921-56-3)
- 4-(5-(2-Chloro-4-nitrophenoxy)pentanamido)benzene-1-sulfonyl fluoride (CAS 30885-86-0)
- 2-Cyclopropoxy-3-isopropylbenzoic acid (CAS 1243288-60-9)
- 7-Ethyl-4,5-dihydro-1H-furo[2,3-g]indazole (CAS 1019332-49-0)
- Baricitinib Impurity 14 (CAS 1029716-44-6)
- 4-Chloro-2-phenylthieno[2,3-d]pyrimidine (CAS 56843-80-2)
- 5-(1H-Imidazol-1-yl)isophthalic acid (CAS 1643586-52-0)
- NVP-BAG956 (CAS 853910-02-8)
- (Tyr?)-C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 142878-79-3)
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