4-fluoro-2-(trifluoromethyl)benzene-1-sulfonyl chloride CAS 176225-09-5
| CAS No. | 176225-09-5 |
| 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 4-fluoro-2-(trifluoromethyl)benzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-fluoro-2-(trifluoromethyl)benzene-1-sulfonyl chloride (CAS 176225-09-5) is a high-purity analytical reference standard with the molecular formula C7H9ClF4O2S and a molecular weight of 268.66 g/mol.
4-fluoro-2-(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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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.) | 2007 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related fluoro Standards
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Recommended Standards
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- 1-chloro-3-(2-methylpropoxy)-5-(trifluoromethoxy)benzene (CAS 1881295-72-2)
- 1-(5-Chloro-1-ethyl-6-oxo-1,6-dihydropyridazin-4-yl)-1H-imidazole-4-carboxylic acid (CAS 1708268-79-4)
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