3-Bromo-5-(chlorosulfonyl)-2-fluorobenzoic acid CAS 1242339-96-3
| CAS No. | 1242339-96-3 |
| Molecular Formula | C7H3BrClFO4S |
| Molecular Weight | 317.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H3BrClFO4S, 3-Bromo-5-(chlorosulfonyl)-2-fluorobenzoic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 317.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Bromo-5-(chlorosulfonyl)-2-fluorobenzoic acid (CAS 1242339-96-3), molecular formula C7H3BrClFO4S and molecular weight 317.52 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures 3-Bromo-5-(chlorosulfonyl)-2-fluorobenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H3BrClFO4S |
| Molecular Weight | 317.52 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-5-(chlorosulfonyl)-2-fluorobenzoic acid (CAS 1099186-78-3)
- 4-Bromo-3-(chlorosulfonyl)-5-fluorobenzoic acid (CAS 1242338-82-4)
- Methyl 8-bromo-6-chloro-2-oxo-2H-chromene-3-carboxylate (CAS 1427460-59-0)
- 2-Bromo-3-(chlorosulfonyl)-5-fluorobenzoic acid (CAS 926194-65-2)
- 2-bromo-5-(chlorosulfonyl)-4-fluorobenzoic acid (CAS 926195-99-5)
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