2-Fluoro-5-methyl-4-(trifluoromethyl)benzenesulfonyl chloride CAS 1706431-05-1
| CAS No. | 1706431-05-1 |
| Molecular Formula | C8H5ClF4O2S |
| Molecular Weight | 276.64 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 2-Fluoro-5-methyl-4-(trifluoromethyl)benzenesulfonyl chloride.
2-Fluoro-5-methyl-4-(trifluoromethyl)benzenesulfonyl chloride (CAS 1706431-05-1) is a high-purity analytical reference standard with the molecular formula C8H5ClF4O2S and a molecular weight of 276.64 g/mol.
Based on its molecular formula C8H5ClF4O2S, 2-Fluoro-5-methyl-4-(trifluoromethyl)benzenesulfonyl chloride 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 276.64 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Fluoro-5-methyl-4-(trifluoromethyl)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 | C8H5ClF4O2S |
| Molecular Weight | 276.64 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.) | 1994 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
- (2-Fluoro-4-(trifluoromethyl)phenyl)methanesulfonyl chloride (CAS 1357624-06-6)
- 3-Fluoro-4-methyl-5-(trifluoromethyl)benzenesulfonyl chloride (CAS 1706451-99-1)
- 4-Fluoro-3-methyl-5-(trifluoromethyl)benzenesulfonyl chloride (CAS 1706458-75-4)
- (2-Fluoro-5-(trifluoromethyl)phenyl)methanesulfonyl chloride (CAS 501697-75-2)
- 2-Fluoro-4-methylbenzenesulfonyl chloride (CAS 827614-35-7)
- 1-Fluoro-4-(trans-4-heptylcyclohexyl)benzene (CAS 76802-59-0)
- 2-Fluoro-N-(1,7,7-trimethylbicyclo[2.2.1]Heptan-2-yl)isonicotinamide (CAS 1291647-45-4)
- 8-Fluoro-1-(2-(piperidin-1-yl)ethyl)-3,4-dihydroquinolin-2(1H)-one (CAS 1373391-80-0)
Recommended Standards
- N-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]-N-(2-furylmethyl)amine (CAS 1036578-95-6)
- [2-(2-Chloro-phenyl)-5-trifluoromethyl-2H-pyrazol-3-yl]-methanol (CAS 1033586-27-4)
- (1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrrol-2-yl)methanol (CAS 321430-86-8)
- 1-Phenyldodecane-d30 (CAS 352431-29-9)
- 1-(Benzo[d]oxazol-3(2H)-yl)-2-chloroethanone (CAS 686347-63-7)
- Ethyl 2-bromo-3-cyano-4-nitrobenzoate (CAS 1807029-79-3)
- N-(4-chlorobenzyl)-5-methyl-4H-1,2,4-triazol-3-amine (CAS 938007-74-0)
- 5-Bromo-7-chloroindole-2-carboxylic Acid (CAS 383132-31-8)
- 4-Hydroxy-6-methyl-5-nitropyridin-2(1H)-one (CAS 88499-61-0)
- 5-(o-Tolyl)pyridin-3-amine (CAS 1224740-81-1)
- Vilanterol Impurity 34 (CAS 503070-64-2)
- Icatibant Impurity 8 Acetate (CAS CATO-C4X-23618)
- Belinostat Glucuronide (CAS 1486471-13-9)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
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