1-Bromo-2,4-difluoro-5-(trifluoromethoxy)benzene CAS 1805938-54-8
| CAS No. | 1805938-54-8 |
| Molecular Formula | C7H2BrF5O |
| Molecular Weight | 276.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Bromo-2,4-difluoro-5-(trifluoromethoxy)benzene 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.
1-Bromo-2,4-difluoro-5-(trifluoromethoxy)benzene (CAS 1805938-54-8), molecular formula C7H2BrF5O and molecular weight 276.99 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-Bromo-2,4-difluoro-5-(trifluoromethoxy)benzene (C7H2BrF5O) contains a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 276.99 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C7H2BrF5O |
| Molecular Weight | 276.99 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, 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.) | 1995 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 5-Bromo-1,3-difluoro-2-(trifluoromethoxy)benzene (CAS 115467-07-7)
- 3-Bromo-6-(perfluoroethyl)pyridazine (CAS 1206523-98-9)
- 2-Bromo-5-pentafluoroethyl-pyrazine (CAS 1206524-53-9)
- 1-Bromo-3,5-difluoro-2-(trifluoromethoxy)benzene (CAS 1242259-73-9)
- 1417567-17-9 5-Bromo-1,2-difluoro-3-(trifluoromethoxy)benzene (CAS 1417567-17-9)
- 2-Bromo-1,3-difluoro-5-(trifluoromethoxy)benzene (CAS 1417568-00-3)
- 1-Bromo-2,3-difluoro-4-(trifluoromethoxy)benzene (CAS 1417569-62-0)
- 1-Bromo-2,5-difluoro-4-(trifluoromethoxy)benzene (CAS 1439904-14-9)
Recommended Standards
- 1-Bromo-2,3-difluoro-5-(trifluoromethoxy)benzene (CAS 1804403-48-2)
- 2-Bromo-1,4-difluoro-3-(trifluoromethoxy)benzene (CAS 1807078-27-8)
- 1-Bromo-2,4-difluoro-3-(trifluoromethoxy)benzene (CAS 1807187-83-2)
- 5-Bromo-2-(perfluoroethyl)pyrimidine (CAS 1822863-19-3)
- 3-(4-{4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}phenyl)propanoic acid (CAS 1223644-50-5)
- Methyl (S,Z)-3-(3-Boc-2,2-dimethyloxazolidin-4-yl)acrylate (CAS 126587-36-8)
- (6-(Chloromethyl)pyridin-2-yl)methyl acetate (CAS 200289-84-5)
- 2-(Bromomethyl)-4-tosylmorpholine (CAS 1541487-32-4)
- 4-((2-Chloroallyl)oxy)-3-methoxybenzonitrile (CAS 1016800-80-8)
- trans-Cyclopropane-1,2-dicarboxylic Acid (CAS 696-75-3)
- Atosiban Impurity 97 (CAS CATO-C4X-229397)
- 2-Chlorobenzofuran-7-ol (CAS 1557704-82-1)
- 6-Bromo-5-methoxyindoline-2,3-dione (CAS 130420-78-9)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com