2-Chloro-4-methanesulfonamidobenzoic acid CAS 158579-73-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 158579-73-8 |
| Molecular Formula | C8H8ClNO4S |
| Molecular Weight | 249.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-4-methanesulfonamidobenzoic acid (CAS 158579-73-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H8ClNO4S. Molecular weight: 249.67 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H8ClNO4S |
| Molecular Weight | 249.67 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 |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- P-tolyl (chlorosulfonyl)carbamate (CAS 156150-68-4)
- 4-Chloro-2-(methylsulfonamido)benzoic Acid (CAS 158579-89-6)
- 2-Chloro-N-(4-fluorophenyl)benzamide (CAS 153386-06-2)
- Sodium 3-ethyl-7-isopropylazulene-1-sulfonate (CAS 97683-31-3)
- 1-(tert-Butyl)3-methyl3-(hydroxymethyl)azetidine-1,3-dicarboxylate (CAS 2173991-68-7)
- (E)-Methyl 4-((2-((2-(trifluoromethyl)phenyl)sulfonyl)hydrazono)methyl)benzoate (CAS 2301998-81-0)
- N-(2-Aminoethyl)methanesulfonamide (CAS 83019-89-0)
- tert-Butyl (2-bromo-3,4-difluorophenyl)carbamate (CAS 144298-06-6)
- lithium(1+) ion 2-(1-hydroxyethyl)benzoate (CAS 1909348-16-8)
- Semaglutide impurity 46 (CAS CATO-C4X-222646)
Why CATO?
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