4-Chloro-3-(fluorosulfonyl)benzoic acid CAS 2494-80-6
| CAS No. | 2494-80-6 |
| Molecular Formula | C7H4ClFO4S |
| Molecular Weight | 238.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Chloro-3-(fluorosulfonyl)benzoic acid.
4-Chloro-3-(fluorosulfonyl)benzoic acid (CAS 2494-80-6) is a high-purity analytical reference standard with the molecular formula C7H4ClFO4S and a molecular weight of 238.62 g/mol.
Based on its molecular formula C7H4ClFO4S, 4-Chloro-3-(fluorosulfonyl)benzoic 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 238.62 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).
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 4-Chloro-3-(fluorosulfonyl)benzoic 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 | C7H4ClFO4S |
| Molecular Weight | 238.62 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.) | 1957 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-[4-chloro-3-(difluoromethyl)-5-methyl-1h-pyrazol-1-yl]propanoic acid (CAS 1005584-35-9)
- 5-Chloro-2-(trifluoromethylthio) nicotinonitrile (CAS 1204234-33-2)
- 4-Chloro-7-methoxy-2-oxo-2H-chromene-3-carbaldehyde (CAS 122978-33-0)
- 6-Chloro-3-methyl-4-oxo-4H-chromene-2-carboxylic Acid (CAS 1239779-74-8)
- 4-(3-Chloro-2,4-difluorophenyl)-1H-pyrrole-3-carbonitrile (CAS 124185-27-9)
- 4-Chloro-2-(trifluoromethyl)thieno[3,2-d]pyrimidine (CAS 147972-27-8)
- Ethyl 4-chloro-1-(2,2-difluoroethyl)-1H-pyrazole-3-carboxylate (CAS 1856061-98-7)
- 2-chloro-4-(fluorosulfonyl)benzoic acid (CAS 1934852-61-5)
Recommended Standards
- 4-(Chlorosulfonyl)-3-fluorobenzoic acid (CAS 244606-33-5)
- 4-Chloro-5-(trifluoromethyl)thieno[2,3-d]pyrimidine (CAS 917909-58-1)
- 3-chloro-4-(fluorosulfonyl)benzoic acid (CAS 33866-05-6)
- 4-Chloro-7-(difluoromethyl)quinoline-3-carbonitrile (CAS 2188210-72-0)
- 2,3-Dichloro-5-methylacetophenone (CAS 1806303-69-4)
- 1-(3-(Benzyloxy)pyridin-2-yl)-3-(4-methoxybenzyl)urea (CAS 1023511-68-3)
- 4-(4-Fluorophenyl)phthalazin-1(2H)-one (CAS 1766-63-8)
- N-(2-Bromophenyl)-2-((4-ethyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 585562-93-2)
- Ethyl 2-((1-((5-mesityl-1,3,4-thiadiazol-2-yl)amino)-1-oxopropan-2-yl)thio)acetate (CAS 394235-81-5)
- N-(2,3-Dihydro-1H-inden-4-yl)acetamide (CAS 77802-37-0)
- 6-Chloro-2,2-dimethylchroman-4-one (CAS 80055-85-2)
- (E)-3-(2-fluorophenyl)-2-methylacrylic acid (CAS 1616612-03-3)
- Ethyl 3,4-dihydro-2H-pyrrole-5-carboxylate (CAS 403712-90-3)
- CBP501 Affinity Peptide trifluoroacetate salt (CAS 1351804-17-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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