5-Chloro-2,4-difluorobenzenesulfonamide CAS 13656-56-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13656-56-9 |
| Molecular Formula | C6H4ClF2NO2S |
| Molecular Weight | 227.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-2,4-difluorobenzenesulfonamide (CAS 13656-56-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C6H4ClF2NO2S. Molecular weight: 227.62 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C6H4ClF2NO2S |
| Molecular Weight | 227.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- Methyl 6-chloro-5-fluoro-1H-indole-2-carboxylate (CAS 1067658-29-0)
- 2-Chloro-3,6-difluorobenzenesulfonamide (CAS 1204573-34-1)
- 3-Chloro-2,4-difluorobenzenesulfonamide (CAS 1204573-48-7)
- 3-Chloro-2,6-difluorobenzenesulfonamide (CAS 1204575-16-5)
- 6-Chloro-2,3-difluorobenzene-1-sulfonamide (CAS 1208077-20-6)
- 4-Chloro-2,6-difluorobenzenesulfonamide (CAS 1208078-00-5)
- 2-(4-Chloro-7-fluoro-1H-indol-3-yl)acetic acid (CAS 1227499-47-9)
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Recommended Standards
- 3-Chloro-4-fluoro-1-methyl-1H-indole-2-carboxylic acid (CAS 1312141-19-7)
- Methyl 5-chloro-6-fluoro-1H-indole-2-carboxylate (CAS 169674-14-0)
- 3-Chloro-6-fluoro-1-methyl-1H-indole-2-carboxylic acid (CAS 1312136-94-9)
- 1-(2-Hydroxyethyl)pyrrolidin-3-ol (CAS 98278-20-7)
- Methyl 2-chloro-4-methoxypyrimidine-5-carboxylate (CAS 1407180-77-1)
- N-(3-chlorophenyl)-4-methylbenzenesulfonamide (CAS 19377-04-9)
- Malvidin 3-arabinoside (CAS 679429-95-9)
- Isopropyl 2-amino-7-methyl-5-oxo-4-(3-(trifluoromethyl)phenyl)-4H,5H-pyrano[4,3-b]pyran-3-carboxylate (CAS 625373-02-6)
- 1-(3-Phenyl-4,5-dihydroisoxazol-5-yl)propan-1-one (CAS 14659-66-6)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788679)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com