2-Bromo-1,3-difluoro-5-(trifluoromethyl)benzene CAS 499238-36-7
| CAS No. | 499238-36-7 |
| Molecular Formula | C7H2BrF5 |
| Molecular Weight | 260.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-1,3-difluoro-5-(trifluoromethyl)benzene (CAS 499238-36-7), molecular formula C7H2BrF5 and molecular weight 260.99 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H2BrF5, 2-Bromo-1,3-difluoro-5-(trifluoromethyl)benzene contains fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C7H2BrF5 |
| Molecular Weight | 260.99 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 |
| 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.) | 2025 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 2-Bromo-1,5-difluoro-3-(trifluoromethyl)benzene (CAS 1099597-86-0)
- 1-Bromo-4,5-difluoro-2-(trifluoromethyl)benzene (CAS 112290-04-7)
- 2-Bromo-1,4-difluoro-3-(trifluoromethyl)benzene (CAS 1242339-93-0)
- 3-Bromo-2,6-difluorobenzotrifluoride (CAS 1263377-74-7)
- 2-Bromo-1,3-difluoro-4-(trifluoromethyl)benzene (CAS 1805023-67-9)
- 3-Bromo-4,5-difluorobenzotrifluoride (CAS 1805119-88-3)
- 1-Bromo-3,5-difluoro-2-(trifluoromethyl)benzene (CAS 1805523-62-9)
- 1-Bromo-2,5-difluoro-3-(trifluoromethyl)benzene (CAS 1807071-16-4)
Recommended Standards
- 2,4-Dichloro-1,1,1,6,6,6-hexafluorohex-2-ene (CAS 885275-95-6)
- 2-Bromo-3,4-difluoro-1-(trifluoromethyl)benzene (CAS 663601-56-7)
- 1-Bromo-2,5-difluoro-4-(trifluoromethyl)benzene (CAS 261945-75-9)
- 2-Bromo-4-(difluoromethyl)-1,3,5-trifluorobenzene (CAS 2091605-09-1)
- tert-Butyl 4-[(5-methyl-2-nitrophenyl)amino]-piperidine-1-carboxylate (CAS 950772-97-1)
- 2-(3,5-Dichlorophenyl)-2-morpholinoacetic acid (CAS 1218367-40-8)
- 3-(4-Nitrophenyl)-4-(piperidin-1-ylmethyl)isoxazol-5(2H)-one (CAS 61194-97-6)
- 1-Benzyl-3-(2,2,2-trifluoroacetyl)piperidin-4-one hydrochloride (CAS 1198285-40-3)
- 6-Amino-2-(isopropylthio)pyrimidin-4(3H)-one (CAS 2917-03-5)
- 2-((5,6-Dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetic acid (CAS 54968-60-4)
- 4-Bromo-5-hydroxyfuran-2(5H)-one (CAS 68085-53-0)
- tert-Butyl diisopropylcarbamate (CAS 105678-27-1)
- 6-Chloro-4-(difluoromethyl)-5-methylpyridin-3-ol (CAS 1805412-86-5)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
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