4-Bromo-2-fluorobenzotrifluoride CAS 142808-15-9
| CAS No. | 142808-15-9 |
| Molecular Formula | C7H3BrF4 |
| Molecular Weight | 243.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromo-2-fluorobenzotrifluoride (CAS 142808-15-9), molecular formula C7H3BrF4 and molecular weight 243.00 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Bromo-2-fluorobenzotrifluoride (C7H3BrF4) contains 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 243.00 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.
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 | C7H3BrF4 |
| Molecular Weight | 243.00 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.) | 1997 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 2-Bromo-1-fluoro-3-(trifluoromethyl)benzene (CAS 104540-42-3)
- 5-Bromo-2-(difluoromethyl)-1,3-difluorobenzene (CAS 1221272-77-0)
- 1-Bromo-3-fluoro-5-(trifluoromethyl)benzene (CAS 130723-13-6)
- 3-Bromo-2-fluorobenzotrifluoride (CAS 144584-67-8)
- 1-Bromo-3-(difluoromethyl)-2,4-difluorobenzene (CAS 1447671-68-2)
- 1-Bromo-4-(difluoromethyl)-2,3-difluorobenzene (CAS 1449290-34-9)
- 1-Bromo-4-(difluoromethyl)-2,5-difluorobenzene (CAS 1628442-65-8)
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Recommended Standards
- Methyl n-(2-iodoacetyl)carbamate (CAS 1343972-56-4)
- 2-(Difluoromethyl)-4-iodo-1H-pyrrole (CAS 2091786-73-9)
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- 2-Bromo-3-(difluoromethyl)-1,4-difluorobenzene (CAS 1672663-79-4)
- 2-(6,8-Dichloro-4-oxoquinazolin-3(4H)-yl)-N-ethyl-N-phenylacetamide (CAS 618443-81-5)
- (S)-Methyl 2-(pyrrolidin-2-yl)acetateHCl (CAS 259868-83-2)
- 3,4-dihydro-2H-pyran-2-ylmethanamine (CAS 4781-76-4)
- 5,7-Dimethoxy-2-(naphthalen-2-yl)-4-(trifluoromethyl)quinoline (CAS 853310-83-5)
- 1-(Benzyloxy)-2-fluoro-5-methyl-4-nitrobenzene (CAS 145159-64-4)
- 1-(6-methoxypyridin-3-yl)ethanone 213193-32-9 5-Acetyl-2-Methoxypyridine A4597 (CAS 213193-32-9)
- 8-chloroimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1019023-77-8)
- 4-(Benzyloxy)-1-bromo-2-isopropylbenzene (CAS 211495-35-1)
- Ethyl 2-((cyanomethyl)amino)acetate (CAS 71172-40-2)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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