2,4-Dichlorobenzenesulfonyl chloride CAS 16271-33-3
| CAS No. | 16271-33-3 |
| Molecular Formula | C6H9Cl3O2S |
| Molecular Weight | 251.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2,4-Dichlorobenzenesulfonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 2,4-Dichlorobenzenesulfonyl chloride (CAS 16271-33-3), a certified reference material (molecular formula C6H9Cl3O2S, MW 251.56 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 2,4-Dichlorobenzenesulfonyl chloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 251.56 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C6H9Cl3O2S |
| Molecular Weight | 251.56 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.) | 1961 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichlorobenzenesulfonyl Standards
- 2,6-Dichlorobenzenesulfonyl chloride 2,6-dichlorobenzenesulfonylchloride 2,6-dichloro-benzenesulfonyl chloride 2,6-dichlorobenzene sulfonyl chloride 2,6-dichlorobenzenesulphonyl chloride 2,6-dichlorobenzene-1-sulfonyl chloride 2,6-Dichlorophenylsulfonyl chloride 6579-54-0 (CAS 6579-54-0)
- 2,3-Dichlorobenzenesulfonyl isocyanate (CAS 68984-06-5)
- 2,5-Dichlorobenzenesulfonyl isocyanate (CAS 7019-16-1)
- 2,6-Dichlorobenzenesulfonyl isocyanate (CAS 71103-41-8)
- 3,5-Dichlorobenzenesulfonyl Chloride (CAS 705-21-5)
- 2,5-Dichlorobenzenesulfonyl fluoride (CAS 1373233-39-6)
- 2,4-Dichlorobenzenesulfonyl fluoride (CAS 26120-88-7)
- (Z)-2-(2,4-dichlorobenzenesulfonyl)-N'-hydroxyethanimidamide 1798403-96-9 MS-9669 (CAS 1798403-96-9)
Recommended Standards
- 7-bromo-4-chloro-indan-1-one (CAS 149965-64-0)
- 2,5-DICHLOROBENZENE-1-SULFONYL CHLORIDE 2,5-DICHLOROBENZENESULPHONYL CHLORIDE 2,5-Dichlorobenzenesulfonyl chloride 5402-73-3 AS03520 LABOTEST-BB LT03331296 LABOTEST-BB LT03379769 LABOTEST-BB LTBB005068 OTAVA-BB 1179428 (CAS 5402-73-3)
- 5-(3-Bromopropyl)-4-chloro-1,3-dimethyl-1h-pyrazole (CAS 1496855-30-1)
- 4-Bromo-5-(3-chloropropyl)-1,3-dimethyl-1h-pyrazole (CAS 1479814-72-6)
- trans-6-Aminocyclohex-3-enecarboxamide (CAS 727411-24-7)
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- 3-Allyl-2,5-dimethoxy-2,4-dimethyl-2,5-dihydrofuran (CAS 89100-12-9)
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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 18665070610 / Nicole.chen@cato-chem.com