2-fluoro-5-(trifluoromethyl)benzene-1-sulfonyl chloride CAS 1744-43-0
| CAS No. | 1744-43-0 |
| Molecular Formula | C7H9ClF4O2S |
| Molecular Weight | 268.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 268.66 g/mol gives 2-fluoro-5-(trifluoromethyl)benzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-fluoro-5-(trifluoromethyl)benzene-1-sulfonyl chloride (CAS 1744-43-0) is a high-purity analytical reference standard with the molecular formula C7H9ClF4O2S and a molecular weight of 268.66 g/mol.
2-fluoro-5-(trifluoromethyl)benzene-1-sulfonyl chloride (C7H9ClF4O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 2-fluoro-5-(trifluoromethyl)benzene-1-sulfonyl 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 | C7H9ClF4O2S |
| Molecular Weight | 268.66 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related fluoro Standards
- 2-fluoro-4-(trifluoromethyl)benzene-1-sulfonyl chloride (CAS 1177009-38-9)
- 4-fluoro-2-(trifluoromethyl)benzene-1-sulfonyl chloride (CAS 176225-09-5)
- 3-fluoro-5-(trifluoromethyl)benzene-1-sulfonyl chloride (CAS 886499-99-6)
- 5-Fluoro-2-(2-methoxyethoxy)benzene-1-sulfonyl chloride (CAS 1174295-58-9)
- 2-(1-(2-Fluoro-4-methoxybenzyl)piperazin-2-yl)ethan-1-ol (CAS 847480-85-7)
- (4-Fluoro-benzyl)-[2-(1H-indol-3-yl)-ethyl]-amine (4-fluoro-benzyl)-[2-(1 h-indol-3-yl)-ethyl]-amine 51841-40-8 n-(4-fluorobenzyl)-n-(2-(1h-indol-3-yl)ethyl)amine (CAS 51841-40-8)
- 3-Fluoro-4-n-octyloxybenzoic Acid (CAS 326-78-3)
- 6-Fluoro-N-(4-methoxyphenyl)quinolin-4-amine (CAS 1018041-95-6)
Recommended Standards
- 1-(5-Chloro-1-ethyl-6-oxo-1,6-dihydropyridazin-4-yl)-1H-pyrazole-3-carboxylic acid (CAS 1713463-29-6)
- 1-(5-Chloro-1-ethyl-6-oxo-1,6-dihydropyridazin-4-yl)-1H-imidazole-4-carboxylic acid (CAS 1708268-79-4)
- 1-Butoxy-3-chloro-5-(trifluoromethoxy)benzene (CAS 1881290-35-2)
- 2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)(methyl)amino)propan-1-ol (CAS 1427771-26-3)
- 2-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-phenylacetamide (CAS 15059-17-3)
- 3-Bromo-4-((3-fluorobenzyl)oxy)benzohydrazide (CAS 1706456-97-4)
- 3-(Difluoromethyl)-5-fluoro-4-methylpicolinonitrile (CAS 1804484-83-0)
- N-(2-Aminophenyl)-4-((4-fluoro-2H-indazol-2-yl)methyl)benzamide (CAS 920315-08-8)
- Pentoxifylline EP Impurity D (CAS 59413-14-8)
- 4-(Tert-butyl) 3-methyl 3-(cyanomethyl)morpholine-3,4-dicarboxylate (CAS 2387600-23-7)
- Esmolol Impurity 32 (CAS CATO-C4X-189132)
- 2-(2-Ethoxyphenyl)-8-methylquinoline-4-carbonyl chloride (CAS 1160254-53-4)
- 3,4-Dibromo-5-methylaniline (CAS 1263376-30-2)
- Tau Peptide (273-284) trifluoroacetate salt (CAS 1663490-91-2)
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