4-(Difluoromethoxy)benzenesulfonyl Chloride CAS 351003-34-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 351003-34-4 |
| Molecular Formula | C7H5ClF2O3S |
| Molecular Weight | 242.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Difluoromethoxy)benzenesulfonyl Chloride (CAS 351003-34-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H5ClF2O3S. Molecular weight: 242.63 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H5ClF2O3S |
| Molecular Weight | 242.63 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 2025 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Difluoromethoxy Standards
- 2-(Difluoromethoxy)benzenesulfonyl chloride (CAS 77798-10-8)
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Recommended Standards
- 5-(chloromethyl)-3-[(4-fluorophenoxy)methyl]-1,2,4-oxadiazole (CAS 929975-09-7)
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- 4-Cyanobenzo[d]oxazole-2-sulfonyl chloride (CAS 1806571-84-5)
- (S)-2-((Diphenylphosphoryl)amino)-3-phenylpropanoic acid (CAS 62056-93-3)
- benzyl(1H-pyrazol-3-ylmethyl)amine hydrochloride (CAS 1258650-90-6)
- 1,11-diazide-3,6,9-triox undecane (CAS 101187-39-7)
- 2-(4-pyridyl)propanedial (CAS 51076-46-1)
- 1-Propylnaphthalene (CAS 2765-18-6)
- 1-(5-tert-Butyl-1,2-oxazol-3-yl)-3-methylurea (CAS 55807-46-0)
- Antistasin-Related Peptide (CAS 161561-46-2)
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