2-Chloro-4-(methylsulfonyl)phenol CAS 20945-65-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20945-65-7 |
| Molecular Formula | C7H7ClO3S |
| Molecular Weight | 206.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-4-(methylsulfonyl)phenol (CAS 20945-65-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H7ClO3S. Molecular weight: 206.65 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H7ClO3S |
| Molecular Weight | 206.65 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), 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; 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.) | 1962 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- {[(4-chloro-1H-pyrazol-1-yl)methyl]thio}acetic acid (CAS 1004643-61-1)
- 2-chloro-7-fluoro-3,4-dihydroquinazolin-4-one (CAS 1107694-77-8)
- Methyl 4-chloro-3-hydroxy-5-methylthiophene-2-carboxylate (CAS 113589-29-0)
- 2-Chloro-6-methylpyridine-3-sulfonamide (CAS 1208081-21-3)
- 2-Chloro-5-methylpyridine-3-sulfonamide (CAS 1208081-46-2)
- 2-Chloro-4-methylpyridine-3-sulfonamide (CAS 1208081-58-6)
- 2-Chloro-N-methoxy-N-methylthiazole-5-carboxamide (CAS 1234014-27-7)
- 5-chloro-6-fluoro-1H-1,3-benzodiazole-2-carbaldehyde (CAS 1263378-80-8)
Recommended Standards
- 2-Amino-6-chlorobenzenesulfonamide (CAS 89639-40-7)
- 2-chloro-6-fluoro-3,4-dihydroquinazolin-4-one (CAS 769158-12-5)
- 1-Cyclopropyl-1H-imidazole-2-sulfonyl chloride (CAS 2300609-14-5)
- 6-(4-Methyl-1H-pyrazol-1-yl)nicotinonitrile (CAS 1184066-45-2)
- (1-Cyclopropyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)methanol (CAS 1402445-90-2)
- 1-(Bromomethyl)-4-(4-(trifluoromethoxy)phenoxy)benzene (CAS 1686102-86-2)
- N6-Isopropyl-4,5,6,7-tetrahydrobenzo[d]thiazole-2,6-diamine (CAS 104617-64-3)
- 1170529-90-4 1-[6-(4-Methylpiperidin-1-yl)pyridazin-3-yl]piperidine-3-carboxylic acid MFCD14281819 (CAS 1170529-90-4)
- Ethyl 1,6-dimethyl-2-oxo-4-(o-tolyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 1135283-42-9)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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 13829788188 / jacky.chen@cato-chem.com