| CAS No. | 3823-40-3 |
| Molecular Formula | C7H5F3OS |
| Molecular Weight | 194.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-[(Trifluoromethyl)thio]phenol (CAS 3823-40-3), molecular formula C7H5F3OS and molecular weight 194.17 g/mol, is a CATO reference standard with documented purity and traceability.
3-[(Trifluoromethyl)thio]phenol (C7H5F3OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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-[(Trifluoromethyl)thio]phenol 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 | C7H5F3OS |
| Molecular Weight | 194.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |