3-Chloro-4-methoxybenzenesulfonamide CAS 69173-20-2
| CAS No. | 69173-20-2 |
| Molecular Formula | C7H8ClNO3S |
| Molecular Weight | 221.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Chloro-4-methoxybenzenesulfonamide (CAS 69173-20-2) is a high-purity analytical reference standard with the molecular formula C7H8ClNO3S and a molecular weight of 221.66 g/mol.
3-Chloro-4-methoxybenzenesulfonamide (C7H8ClNO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, 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).
CATO manufactures 3-Chloro-4-methoxybenzenesulfonamide 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 | C7H8ClNO3S |
| Molecular Weight | 221.66 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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- N-(4-Chloro-3-hydroxyphenyl)methanesulfonamide (CAS 1243461-89-3)
- 2-Chloro-4-methoxybenzenesulfonamide (CAS 1261570-22-2)
Recommended Standards
- 3'-Chloro-4'-fluoro-[1,1'-biphenyl]-2-amine (CAS 577954-86-0)
- 3-Chloro-N-methoxybenzenesulfonamide (CAS 304912-89-8)
- 3-amino-5-chloro-4-methylbenzenesulfonic acid (CAS 6387-27-5)
- 4-(3-Chloro-4-fluorophenyl)aniline (CAS 405058-02-8)
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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