| CAS No. | 60903-82-4 |
| Molecular Formula | C7H3ClF4 |
| Molecular Weight | 198.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 198.55 g/mol gives 4-Chloro-2,3,5,6-tetrafluorotoluene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Chloro-2,3,5,6-tetrafluorotoluene (CAS 60903-82-4) is a high-purity analytical reference standard with the molecular formula C7H3ClF4 and a molecular weight of 198.55 g/mol.
Based on its molecular formula C7H3ClF4, 4-Chloro-2,3,5,6-tetrafluorotoluene contains fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.55 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.
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.
| Molecular Formula | C7H3ClF4 |
| Molecular Weight | 198.55 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| 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.) | 1974 |
| Halogen Content | F/Cl-containing |