2-(Difluoromethoxy)benzenesulfonyl chloride CAS 77798-10-8
| CAS No. | 77798-10-8 |
| Molecular Formula | C7H5ClF2O3S |
| Molecular Weight | 242.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(Difluoromethoxy)benzenesulfonyl chloride 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.
2-(Difluoromethoxy)benzenesulfonyl chloride (CAS 77798-10-8) is a high-purity analytical reference standard with the molecular formula C7H5ClF2O3S and a molecular weight of 242.63 g/mol.
Based on its molecular formula C7H5ClF2O3S, 2-(Difluoromethoxy)benzenesulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 242.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H5ClF2O3S |
| Molecular Weight | 242.63 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.) | 1979 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Difluoromethoxy Standards
- 4-(Difluoromethoxy)benzenesulfonyl Chloride (CAS 351003-34-4)
- 1-[4-(difluoromethoxy)phenyl]piperidin-4-amine (CAS 1094308-87-8)
- 1-(4-(Difluoromethoxy)benzyl)piperazine (CAS 1150344-90-3)
- 1-[4-(difluoromethoxy)phenyl]piperidin-3-amine (CAS 1282711-39-0)
- 4-[4-(difluoromethoxy)phenyl]-1,3-thiazol-2-amine (CAS 105512-78-5)
- 4-(3-(Difluoromethoxy)phenyl)thiazol-2(3h)-imine (CAS 1094363-93-5)
- 4-[2-(difluoromethoxy)phenyl]-1,3-thiazol-2-amine (CAS 760936-33-2)
- 3-(Difluoromethoxy)-5-methylbenzofuran-2-carboxylic acid (CAS 1708401-49-3)
Recommended Standards
- 1-(2-chloro-3-fluoro-phenyl)hexahydropyrimidine-2,4-dione (CAS 2028797-37-5)
- 4-Amino-5-(difluoromethyl)pyridine-3-sulfonyl chloride (CAS 1806777-00-3)
- 5-(chloromethyl)-3-[(4-fluorophenoxy)methyl]-1,2,4-oxadiazole (CAS 929975-09-7)
- 4-Amino-6-(difluoromethyl)pyridine-2-sulfonyl chloride (CAS 1803695-48-8)
- Sterebin E (CAS 114343-74-7)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
- 3,8-Dioxa-11-azaspiro[5.6]Dodecane (CAS 1646177-44-7)
- 2'-Bromospiro[cyclopropane-1,6'-thieno[2,3-c]pyrrol]-4'(5'H)-one (CAS 1951483-77-4)
- 2-[5-(Difluoromethyl)pyridin-2-yl]acetic acid (CAS 1211587-21-1)
- 5-Bromo-7-iodobenzofuran (CAS 2227272-90-2)
- 3-Amino-N-(4,5-dimethylthiazol-2-yl)benzamide (CAS 1018501-10-4)
- (2-((3-Chlorophenoxy)methyl)phenyl)boronic acid (CAS 1256358-74-3)
- Methyl 3-amino-2,4-dihydroxybenzoate (CAS 956105-63-8)
- Tirzepatide Impurity 47 (CAS CATO-C4X-324047)
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