1-Bromo-2-chloro-3-fluoro-4-(trifluoromethyl)benzene CAS 1260890-50-3
| CAS No. | 1260890-50-3 |
| Molecular Formula | C7H2BrClF4 |
| Molecular Weight | 277.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to fluorine/chlorine/bromine substitution, an aromatic ring system, 1-Bromo-2-chloro-3-fluoro-4-(trifluoromethyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 277.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1-Bromo-2-chloro-3-fluoro-4-(trifluoromethyl)benzene (CAS 1260890-50-3), molecular formula C7H2BrClF4 and molecular weight 277.44 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C7H2BrClF4 |
| Molecular Weight | 277.44 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1990 |
| Halogen Content | F/Cl/Br-containing |
Related Bromo Standards
- 3-Bromo-2-chloro-5-fluorobenzotrifluoride (CAS 1027511-98-3)
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