4-Chloro-N-(2,5-difluorophenyl)benzenesulfonamide CAS 290331-05-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 290331-05-4 |
| Molecular Formula | C12H8ClF2NO2S |
| Molecular Weight | 303.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-N-(2,5-difluorophenyl)benzenesulfonamide (CAS 290331-05-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C12H8ClF2NO2S. Molecular weight: 303.71 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C12H8ClF2NO2S |
| Molecular Weight | 303.71 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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- 1-(4-Chloro-3-nitrobenzenesulfonyl)-2-methyl-4,5-dihydro-1H-imidazole (CAS 312279-47-3)
Recommended Standards
- 2-((tert-Butoxycarbonyl)amino)-2-(4-chloro-3-fluorophenyl)acetic acid (CAS 1236349-77-1)
- 2,4-Dioxo-1-propyl-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-sulfonyl chloride (CAS 1334149-09-5)
- N-(3-Chlorophenyl)-3,5-difluorobenzenesulfonamide (CAS 1089622-73-0)
- 3-Phenyl-5-[(Z)-2-thienylmethylidene]-2-(4H-1,2,4-triazol-4-ylimino)-1,3-thiazolan-4-one (CAS 478077-87-1)
- Trans-Beta-Farnesene (CAS 18794-84-8)
- 3-((3-(((6-Amino-7H-purin-8-yl)thio)methyl)phenyl)carbamoyl)benzene-1-sulfonyl fluoride (CAS 17730-86-8)
- 20-Mercapto-3,6,9,12,15,18-hexaoxaicosan-1-ol (CAS 473709-21-6)
- 2-Isopropoxyacetaldehyde (CAS 77342-92-8)
- n1-Cyclooctyl-n3,n3-dimethylpropane-1,3-diamine (CAS 1021028-72-7)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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 13829788188 / jacky.chen@cato-chem.com