5-fluoro-3-methyl-benzothiophene-2-sulfonyl chloride CAS 404964-34-7
| CAS No. | 404964-34-7 |
| Molecular Formula | C9H14ClFO2S2 |
| Molecular Weight | 272.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 5-fluoro-3-methyl-benzothiophene-2-sulfonyl chloride (CAS 404964-34-7), a certified reference material (molecular formula C9H14ClFO2S2, MW 272.79 g/mol) for analytical method development and quality control.
5-fluoro-3-methyl-benzothiophene-2-sulfonyl chloride (C9H14ClFO2S2) 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C9H14ClFO2S2 |
| Molecular Weight | 272.79 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) | 2.0 |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 2 |
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