2-Chloro-5-(chlorosulfonyl)-benzoyl chloride CAS 547739-66-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 547739-66-2 |
| Molecular Formula | C7H3Cl3O3S |
| Molecular Weight | 273.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-5-(chlorosulfonyl)-benzoyl chloride (CAS 547739-66-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H3Cl3O3S. Molecular weight: 273.52 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H3Cl3O3S |
| Molecular Weight | 273.52 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 6-Bromo-2-chloro-5-methylpyrido[2,3-d]pyrimidin-7-amine (CAS 1908455-60-6)
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- 4-Bromo-1-(3-chloropyridin-2-yl)-1h-pyrazol-3-amine (CAS 1250758-60-1)
- (2E)-2-[(E)-1-Methyl-1H-pyrrole-2-carbonyl]-3-(thiophen-3-yl)prop-2-enenitrile (CAS 900019-56-9)
- 3-(Allyloxy)benzohydrazide (CAS 725702-60-3)
- 2,2-Dimethyltetrahydropyran-4-ol (CAS 24945-13-9)
- 8-fluoro-2H-isoquinolin-1-one (CAS 444898-84-4)
- Pro-Calcitriol PTAD Adduct (CAS 137342-95-1)
- 3-Cyclopropyl-1-isopropyl-1H-pyrazole-4-carboxylic acid (CAS 1550812-61-7)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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