2,3-Dichloro-5-methylbenzenesulfonyl chloride CAS 871876-53-8
| CAS No. | 871876-53-8 |
| Molecular Formula | C7H5Cl3O2S |
| Molecular Weight | 259.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,3-Dichloro-5-methylbenzenesulfonyl chloride (C7H5Cl3O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
2,3-Dichloro-5-methylbenzenesulfonyl chloride (CAS 871876-53-8) is a high-purity analytical reference standard with the molecular formula C7H5Cl3O2S and a molecular weight of 259.54 g/mol.
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.
CATO manufactures 2,3-Dichloro-5-methylbenzenesulfonyl 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.
Physical & Chemical Properties
| Molecular Formula | C7H5Cl3O2S |
| Molecular Weight | 259.54 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 | May oxidize slowly on prolonged air exposure; 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.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 4,5-Dichloro-2-methylbenzenesulfonyl chloride (CAS 1215295-88-7)
- 2,4-Dichloro-6-methylbenzenesulphonyl chloride (CAS 175278-26-9)
- 2,5-Dichloro-3-methylbenzenesulfonyl chloride (CAS 1803835-89-3)
- 2,4-Dichloro-3-methylbenzene-1-sulfonyl chloride (CAS 69145-58-0)
- 2,4-Dichloro-5-methylbenzenesulfonyl chloride (CAS 28286-86-4)
- 2,5-Dichloro-4-methylbenzene-1-sulfonyl chloride (CAS 473477-22-4)
- 2,6-Dichloro-3-methylbenzene-1-sulfonyl chloride (CAS 64063-38-3)
- 2,6-Dichloro-4-methylbenzene-1-sulfonyl chloride (CAS 90196-19-3)
Recommended Standards
- [(Trichloromethyl)sulfonyl]benzene (CAS 42764-08-9)
- (3,4-Dichlorophenyl)methanesulfonyl Chloride (CAS 85952-30-3)
- (2,6-Dichlorophenyl)methanesulfonyl chloride (CAS 85952-31-4)
- (2,4-Dichlorophenyl)methanesulfonyl chloride (CAS 88691-50-3)
- 1,3-Dibromo-2-fluoro-5-methylbenzene (CAS 444-13-3)
- Methyl 2-(2,5-difluoropyridin-4-yl)acetate (CAS 1803789-59-4)
- 6-Methyl-2-pentylquinoline-4-carbothioamide (CAS 62078-01-7)
- N-(2-Chloro-5-methoxypyrimidin-4-yl)-1H-indazol-6-amine (CAS 1447607-39-7)
- 2-(3-(Benzyl(methyl)amino)piperidin-1-yl)ethanol (CAS 1353954-44-5)
- tert-Butyl (R)-3-(2-bromophenyl)piperazine-1-carboxylate (CAS 1228571-15-0)
- Methyl (s)-3-amino-3-(3-ethoxyphenyl)propanoate (CAS 1213916-06-3)
- 2-(3-fluoropropyl)cyclopentan-1-one (CAS 1509324-95-1)
- 3-Bromo-7-fluoro-1-methyl-1H-indole (CAS 2120518-85-4)
- D-allo-Thr7-Semaglutide (CAS CATO-C4X-2226242)
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 18665070610 / Nicole.chen@cato-chem.com