3-(Chlorosulfonyl)-2,4,6-trifluorobenzoic acid CAS 1242340-00-6
| CAS No. | 1242340-00-6 |
| Molecular Formula | C7H2ClF3O4S |
| Molecular Weight | 274.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(Chlorosulfonyl)-2,4,6-trifluorobenzoic acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(Chlorosulfonyl)-2,4,6-trifluorobenzoic acid (CAS 1242340-00-6) is a high-purity analytical reference standard with the molecular formula C7H2ClF3O4S and a molecular weight of 274.60 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, 3-(Chlorosulfonyl)-2,4,6-trifluorobenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 274.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C7H2ClF3O4S |
| Molecular Weight | 274.60 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 Chlorosulfonyl Standards
- 5-(Chlorosulfonyl)-2,3,4-trifluorobenzoic acid (CAS 1242338-92-6)
- 3-(Chlorosulfonyl)-2,4,5-trifluorobenzoic acid (CAS 1242340-07-3)
- Methyl 1-(chlorosulfonyl)imidazo[1,5-a]pyridine-6-carboxylate (CAS 2126161-95-1)
- Ethyl3-(3-(chlorosulfonyl)phenyl)acrylate (CAS 1159834-58-8)
- 4-(Chlorosulfonyl)-5,6,7,8-tetrahydronaphthalene-2-carboxylic acid (CAS 926202-14-4)
- methyl 1-[4-(chlorosulfonyl)phenyl]cyclopropane-1-carboxylate (CAS 600134-92-7)
- Methyl 4-(chlorosulfonyl)-2,3-dihydro-1H-indene-2-carboxylate (CAS 888327-29-5)
- Methyl 5-(chlorosulfonyl)-2,3-dihydro-1H-indene-2-carboxylate (CAS 600166-73-2)
Recommended Standards
- 2-(4-Chloro-3,5-bis(difluoromethyl)-1H-pyrazol-1-yl)propanoic acid (CAS 1005678-67-0)
- 4-Chloro-6-fluoro-2-(trifluoromethyl)quinoline-3-carbonitrile (CAS 1263286-10-7)
- 2,4,7-trichloro-8-methoxy-pyrido[4,3-d]pyrimidine (CAS 2454491-03-1)
- Methyl 2-(4-chloro-3,5-bis(difluoromethyl)-1h-pyrazol-1-yl)acetate (CAS 1384856-22-7)
- 2-(1-{[(tert-butoxy)carbonyl]amino}cyclopentyl)acetic acid (CAS 282525-00-2)
- 4-Chloro-2-methyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 300816-24-4)
- 5-[(2-oxo-1,2-dihydropyridin-1-yl)methyl]furan-2-carboxylic acid (CAS 923216-10-8)
- 2',5'-Dichloro-2-methyl-[1,1'-biphenyl]-4-carboxylic acid (CAS 1261984-41-1)
- tert-butyl (3R,4R)-3-azido-4-methoxy-pyrrolidine-1-carboxylate (CAS 1412259-97-2)
- 4-Chloro-4'-(trifluoromethoxy)biphenyl-3-methanol (CAS 1261686-74-1)
- Methyl 3-amino-3-(3-fluoro-5-hydroxyphenyl)propanoate (CAS 1427428-32-7)
- N4-[3,5-di(trifluoromethyl)phenyl]-5-chloro-1,3-dimethyl-1H-pyrazole-4-sulphonamide (CAS 647825-46-5)
- Methyl 4-((ethylamino)methyl)cyclohexane-1-carboxylate hydrochloride (CAS 2137536-43-5)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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