2905-23-9 2-Chlorobenzenesulfonyl chloride Benzenesulfonyl chloride, o-chloro- (6CI,7CI,8CI) Benzenesulfonyl chloride, 2-chloro- 2-Chlorobenzenesulphonyl chloride 4-11-00-00106 (Beilstein Handbook Reference) BRN 0974321 o-Chlorobenzenesulfochloride o-Chlorobenzenesulfonyl chloride EINECS 220-807-3 CAS 2905-23-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2905-23-9 |
| Molecular Formula | C6H10Cl2O2S |
| Molecular Weight | 217.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2905-23-9 2-Chlorobenzenesulfonyl chloride Benzenesulfonyl chloride, o-chloro- (6CI,7CI,8CI) Benzenesulfonyl chloride, 2-chloro- 2-Chlorobenzenesulphonyl chloride 4-11-00-00106 (Beilstein Handbook Reference) BRN 0974321 o-Chlorobenzenesulfochloride o-Chlorobenzenesulfonyl chloride EINECS 220-807-3 (CAS 2905-23-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H10Cl2O2S. Molecular weight: 217.11 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C6H10Cl2O2S |
| Molecular Weight | 217.11 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorobenzenesulfonyl Standards
- 4-Chlorobenzenesulfonyl Isocyanate (CAS 5769-15-3)
- 2-(4-Chlorobenzenesulfonyl)ethan-1-ol (CAS 35847-95-1)
- 3-Chlorobenzenesulfonyl chloride 3-chlorobenzene-1-sulfonylchloride 3-chlorobenzenesulfonylchloride 3-chloro-benzenesulfonyl chloride 3-chlorobenzene-1-sulfonyl chloride 3-chlorobenzenesulphonyl chloride 2888-06-4 (CAS 2888-06-4)
- 4-Chlorobenzenesulfonyl chloride (CAS 98-60-2)
- 3-(4-chlorobenzenesulfonyl)prop-2-enenitrile (CAS 1012-71-1)
- (2e)-3-(4-Chlorobenzenesulfonyl)prop-2-enenitrile (CAS 64326-48-3)
- 3-(4-Chlorobenzenesulfonyl)propan-1-amine (CAS 85052-90-0)
- 2-(2-Chlorobenzenesulfonyl)acetic acid (CAS 82224-89-3)
Recommended Standards
- 7-Chloro-3-(chloromethyl)benzo[b]thiophene (CAS 583057-50-5)
- (4-Nitrophenyl)methylphosphonic acid (CAS 1205-62-5)
- 5-Chloro-3-(chloromethyl)benzo[b]thiophene (CAS 409108-67-4)
- 2-(4-Methylpiperazin-1-yl)-1,3-benzothiazol-6-ol (CAS 146794-75-4)
- Benzeneethanamine, N-(phenylmethoxy)- (CAS 92646-29-2)
- 3-Bromo-1-(3-chloro-4-fluorophenyl)pyrrolidin-2-one (CAS 192318-55-1)
- N-(5-(Phenylselanyl)pentyl)benzamide (CAS 143590-83-4)
- Methyl 2-(4-chloro-2-formylphenoxy)acetate (CAS 24581-96-2)
- 2,3-Dimethylpiperidine (CAS 5347-68-2)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
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