2-(benzenesulfonyl)ethane-1-sulfonyl chloride CAS 64440-81-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 64440-81-9 |
| Molecular Formula | C8H9ClO4S2 |
| Molecular Weight | 268.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(benzenesulfonyl)ethane-1-sulfonyl chloride (CAS 64440-81-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H9ClO4S2. Molecular weight: 268.74 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C8H9ClO4S2 |
| Molecular Weight | 268.74 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 |
| 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.) | 1975 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related benzenesulfonyl Standards
- 1-(benzenesulfonyl)cyclohexane-1-carboxylic acid (CAS 74254-66-3)
- 1-Benzenesulfonyl-piperidine-4-carboxylic acid (CAS 122891-92-3)
- (2E)-2-(Benzenesulfonyl)-3-phenylprop-2-enenitrile (CAS 129200-96-0)
- 5-[(Benzenesulfonyl)methyl]-2-chloropyridine (CAS 478048-53-2)
- 23378-88-3 Benzenesulfonyl chloride, 3,5-dichloro-2-hydroxy- 3,5-Dichloro-2-hydroxybenzenesulphonyl chloride EINECS 245-619-9 (CAS 23378-88-3)
- 4-(benzenesulfonyl)oxane-4-carboxylic acid (CAS 1153968-63-8)
- 2-[(Benzenesulfonyl)methyl]cyclohexane-1,3-dione (CAS 339098-50-9)
- 3-[(benzenesulfonyl)methyl]furan-2-carboxylic acid (CAS 260356-96-5)
Recommended Standards
- 2-(3-Chlorophenyl)-6-methoxynaphthalene (CAS 942475-08-3)
- 2-[4-(3-chlorophenyl)piperazin-1-yl]-N'-hydroxyethanimidamide (CAS 261623-65-8)
- 2-(2-Chloroacetamido)-n-(2-methylpropyl)benzamide (CAS 790263-49-9)
- (5-Chloro-2-nitrophenyl)(methyl)sulfane (CAS 70019-41-9)
- 3,4-Diamino-N-(2-chlorophenyl)benzenesulfonamide (CAS 326023-07-8)
- 3-[(4-Chlorophenyl)methyl]-2,4-dihydroxybenzaldehyde (CAS 339020-35-8)
- 2-[(6-fluoropyrazin-2-yl)oxy]ethan-1-ol (CAS 1989659-45-1)
- 7-Bromoheptanol (CAS 10160-24-4)
- Nalidixic acid sodium salt, 98% (CAS 3374-05-8)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
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