4-Chloro-3-methylbenzene-1-sulfonyl chloride CAS 6291-02-7
| CAS No. | 6291-02-7 |
| Molecular Formula | C7H6Cl2O2S |
| Molecular Weight | 225.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-3-methylbenzene-1-sulfonyl chloride (C7H6Cl2O2S) 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).
4-Chloro-3-methylbenzene-1-sulfonyl chloride (CAS 6291-02-7) is a high-purity analytical reference standard with the molecular formula C7H6Cl2O2S and a molecular weight of 225.09 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Chloro-3-methylbenzene-1-sulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H6Cl2O2S |
| Molecular Weight | 225.09 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.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 3-Chloro-5-methylbenzenesulfonyl chloride (CAS 1049026-35-8)
- 2-Chloro-3-methylbenzene-1-sulfonyl chloride (CAS 1191545-47-7)
- 2-Chloro-5-methylbenzene-1-sulfonyl chloride (CAS 99876-69-4)
- 3-Chloro-2-methylbenzenesulfonyl chloride (CAS 80563-86-6)
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- 5-Chloro-2-methylbenzenesulfonyl Chloride (CAS 34981-38-9)
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