3-chloro-5-(chlorosulfonyl)-2-fluorobenzoic acid CAS 1242339-12-3
| CAS No. | 1242339-12-3 |
| Molecular Formula | C7H3Cl2FO4S |
| Molecular Weight | 273.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H3Cl2FO4S, 3-chloro-5-(chlorosulfonyl)-2-fluorobenzoic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 273.07 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
3-chloro-5-(chlorosulfonyl)-2-fluorobenzoic acid (CAS 1242339-12-3), molecular formula C7H3Cl2FO4S and molecular weight 273.07 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-chloro-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 | C7H3Cl2FO4S |
| Molecular Weight | 273.07 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| 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-containing |
| Sulfur Atoms | 1 |
Related chloro Standards
- 2-Chloro-3-(chlorosulfonyl)-5-fluorobenzoic acid (CAS 1242338-93-7)
- 4-Chloro-3-(chlorosulfonyl)-5-fluorobenzoic acid (CAS 1242339-73-6)
- 2-chloro-5-(chlorosulfonyl)-3-fluorobenzoic acid (CAS 766532-96-1)
- 2-Chloro-5-(chlorosulfonyl)-4-fluorobenzoic acid (CAS 264927-50-6)
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