2-Chlorobenzenesulfonamide CAS 6961-82-6
| CAS No. | 6961-82-6 |
| Molecular Formula | C6H6ClNO2S |
| Molecular Weight | 191.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chlorobenzenesulfonamide (C6H6ClNO2S) contains an amide group, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Chlorobenzenesulfonamide (CAS 6961-82-6), molecular formula C6H6ClNO2S and molecular weight 191.64 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2-Chlorobenzenesulfonamide 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 | C6H6ClNO2S |
| Molecular Weight | 191.64 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorobenzenesulfonamide Standards
Recommended Standards
- 2-Chloro-6-(methylsulfonyl)pyridine (CAS 87512-29-6)
- 2-Chloro-N-(5-methyl-1,3,4-thiadiazol-2-yl)acetamide (CAS 21521-87-9)
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- 2-Chloro-N-methyl-2-(1,2,3-thiadiazol-4-yl)acetamide (CAS 541500-91-8)
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