5-Bromo-2-fluoro-1-benzenesulfonyl Chloride CAS 339370-40-0
| CAS No. | 339370-40-0 |
| Molecular Formula | C6H3BrClFO2S |
| Molecular Weight | 273.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 273.51 g/mol gives 5-Bromo-2-fluoro-1-benzenesulfonyl Chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromo-2-fluoro-1-benzenesulfonyl Chloride (CAS 339370-40-0) is a high-purity analytical reference standard with the molecular formula C6H3BrClFO2S and a molecular weight of 273.51 g/mol.
5-Bromo-2-fluoro-1-benzenesulfonyl Chloride (C6H3BrClFO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system. 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.
As a certified reference material (CRM), 5-Bromo-2-fluoro-1-benzenesulfonyl 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 | C6H3BrClFO2S |
| Molecular Weight | 273.51 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 | May oxidize slowly on prolonged air exposure; 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.) | 2025 |
| Halogen Content | F/Cl/Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 5-(Bromomethyl)-3-(4-chlorophenyl)-1,2,4-oxadiazole (CAS 721428-29-1)
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- 5-Amino-2-((6-(methylsulfinyl)pyridin-3-yl)amino)pyrimidin-4(1H)-one (CAS 77961-72-9)
- 3-Methyl-3-buten-1-ol (CAS 763-32-6)
- N-(2-Aminopyridin-3-yl)-3-chlorobenzamide (CAS 113631-40-6)
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- 1-(5-Hydroxy-2-(methylthio)pyrido[2,3-d]pyrimidin-6-yl)ethanone (CAS 59582-75-1)
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- 3-Amino-5-(3-hydroxyphenyl)benzoic acid (CAS 1261960-83-1)
- (Des-Bromo)-Neuropeptide B (1-23) (human) (CAS 434897-64-0)
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