2-Methyl-4-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzenesulfonyl chloride CAS 1181761-93-2
| CAS No. | 1181761-93-2 |
| Molecular Formula | C13H9ClF3NO3S |
| Molecular Weight | 351.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Methyl-4-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzenesulfonyl chloride (CAS 1181761-93-2), molecular formula C13H9ClF3NO3S and molecular weight 351.73 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H9ClF3NO3S, 2-Methyl-4-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzenesulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 351.73 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 2-Methyl-4-((5-(trifluoromethyl)pyridin-2-yl)oxy)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 | C13H9ClF3NO3S |
| Molecular Weight | 351.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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