3-Chloro-4-ethoxy-5-fluorobenzenesulfonyl chloride CAS 1706430-92-3
| CAS No. | 1706430-92-3 |
| Molecular Formula | C8H7Cl2FO3S |
| Molecular Weight | 273.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 273.11 g/mol gives 3-Chloro-4-ethoxy-5-fluorobenzenesulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-Chloro-4-ethoxy-5-fluorobenzenesulfonyl chloride (CAS 1706430-92-3), a certified reference material (molecular formula C8H7Cl2FO3S, MW 273.11 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, 3-Chloro-4-ethoxy-5-fluorobenzenesulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 273.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Chloro-4-ethoxy-5-fluorobenzenesulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H7Cl2FO3S |
| Molecular Weight | 273.11 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 |
| 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.) | 1994 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-(3-Chloro-4-fluorophenoxy)ethane-1-sulfonyl chloride (CAS 1342755-09-2)
- 4-Chloro-3-ethoxy-2-fluorobenzenesulfonyl chloride (CAS 1706430-95-6)
- 4-Chloro-2-(chloromethyl)-6,7-dimethoxyquinazoline (CAS 1044768-40-2)
- 2-Chloro-4-(3-chloro-4-cyanophenyl)benzonitrile (CAS 1068162-79-7)
- 5-Chloro-6-(chloroacetyl)-1,3-dimethyl-1,3-dihydro-2H-benzimidazol-2-one (CAS 897545-85-6)
- 2-Chloro-N4-(4-chloro-3-fluoro-phenyl)-pyrimidine-4,5-diamine (CAS 1627180-67-9)
- 4-Chloro-2-(5-chloro-2-fluorophenyl)-5-methoxypyrimidine (CAS 674793-47-6)
- 3-Chloro-4-((5-chloropyrazin-2-yl)thio)pyridin-2-amine (CAS 2056004-13-6)
Recommended Standards
- 6-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (CAS 1627721-92-9)
- 7-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (CAS 1627721-91-8)
- 1-Difluoromethoxy-2-nitro-3-(trifluoromethoxy)benzene (CAS 1803825-59-3)
- 1-(3-iodophenyl)pyrrolidine (CAS 1412902-71-6)
- 1-Chloro-N,N-dimethyl-3-m-tolylisoquinolin-7-amine (CAS 1248621-84-2)
- Ethyl (3E)-3-({[(E)-(2-nitrophenyl)-C-hydroxycarbonohydrazonoyl]formamido}imino)butanoate (CAS 477870-50-1)
- N-(3-(2,2,2-trifluoroethoxy)benzyl)propan-2-amine (CAS 1095116-27-0)
- Milnacipran impurity 33 (CAS 172016-06-7)
- N-(Benzenesulfonyl)-N-(4-chloro-3-methyl-1,2-oxazol-5-yl)benzenesulfonamide (CAS 478262-56-5)
- 2-(Chloromethyl)-5-(difluoromethyl)-3-fluoro-6-iodopyridine (CAS 1805047-77-1)
- [(2-Methoxyphenyl)methyl](propyl)amine (CAS 807343-01-7)
- CP-105,696 (CAS 158081-99-3)
- 2-Butenedioic acid (2E)-, 1,4-dibutyl ester, polymer with ethenyl acetate and 2-methyl-2-propenoic acid (CAS 67674-65-1)
- Insulin Degludec Impurity 26 (CAS CATO-C4X-215726)
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