| CAS No. | 1240257-00-4 |
| Molecular Formula | C8H7F5O2S |
| Molecular Weight | 262.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 262.20 g/mol gives 3-Methyl-5-(pentafluorosulfur)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-Methyl-5-(pentafluorosulfur)benzoic acid (CAS 1240257-00-4), a certified reference material (molecular formula C8H7F5O2S, MW 262.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H7F5O2S, 3-Methyl-5-(pentafluorosulfur)benzoic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 262.20 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.
As a certified reference material (CRM), 3-Methyl-5-(pentafluorosulfur)benzoic acid 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.
| Molecular Formula | C8H7F5O2S |
| Molecular Weight | 262.20 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |