4-(Difluoromethoxy)benzenesulfonic acid CAS 142739-04-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 142739-04-6 |
| Molecular Formula | C7H6F2O4S |
| Molecular Weight | 224.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Difluoromethoxy)benzenesulfonic acid (CAS 142739-04-6) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H6F2O4S. Molecular weight: 224.18 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H6F2O4S |
| Molecular Weight | 224.18 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.) | 1997 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Difluoromethoxy Standards
- 3-(Difluoromethoxy)-5-methoxythiophene-2-carboxylic acid (CAS 1707609-66-2)
- 2-(Difluoromethoxy)naphthalene-8-methanol (CAS 1261470-11-4)
- 2-(Difluoromethoxy)naphthalene-3-methanol (CAS 1261488-19-0)
- 2-(Difluoromethoxy)naphthalene-7-methanol (CAS 1261587-30-7)
- 1-(Difluoromethoxy)naphthalene-6-methanol (CAS 1261800-68-3)
- 2-(Difluoromethoxy)naphthalene-5-methanol (CAS 1261844-33-0)
- (4-(Difluoromethoxy)naphthalen-1-yl)methanol (CAS 668275-85-2)
- [2-(difluoromethoxy)naphthalen-1-yl]methanol (CAS 834885-12-0)
Recommended Standards
- 1-(Prop-2-yn-1-yl)-2-(trifluoromethyl)-1h-1,3-benzodiazole (CAS 139591-04-1)
- 3',4',5'-Trifluoro-[1,1'-biphenyl]-3-ol (CAS 1443338-65-5)
- 6-(2,3,4-Trifluorophenyl)pyridin-2-amine (CAS 1339700-84-3)
- 3-(Quinolin-8-yloxy)propan-1-amine (CAS 198782-79-5)
- (1R,4R,5R)-rel-tert-Butyl 5-(benzylamino)-2-azabicyclo[2.2.1]heptane-2-carboxylate (CAS 207405-64-9)
- 5-(Thiophen-3-yl)pentan-1-amine (CAS 792904-73-5)
- 2-(Furan-2-yl)-5-((4-methylbenzyl)thio)-1,3,4-oxadiazole (CAS 477846-88-1)
- cis-2-Fluoro-1-phenylcyclopropyl)methanamine (CAS 681806-70-2)
- Methyl 2-((4-aminophenyl)thio)acetate (CAS 24477-56-3)
- Semaglutide Impurity 5 (CAS 23406-82-8)
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