1,2-Dibromo-4,5-difluorobenzene CAS 64695-78-9
| CAS No. | 64695-78-9 |
| Molecular Formula | C6H2Br2F2 |
| Molecular Weight | 271.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,2-Dibromo-4,5-difluorobenzene (C6H2Br2F2) contains fluorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 1,2-Dibromo-4,5-difluorobenzene (CAS 64695-78-9), a certified reference material (molecular formula C6H2Br2F2, MW 271.88 g/mol) for analytical method development and quality control.
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 | C6H2Br2F2 |
| Molecular Weight | 271.88 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.) | 1975 |
| Halogen Content | F/Br-containing |
Related Dibromo Standards
- 1,3-Dibromo-2,5-difluorobenzene (CAS 128259-68-7)
- 2,5-Dibromo-1,3-difluorobenzene (CAS 128259-71-2)
- 1,2-Dibromo-3,5-difluorobenzene (CAS 139215-43-3)
- 1,4-Dibromo-2,3-difluorobenzene (CAS 156682-52-9)
- 2,3-Dibromo-1,4-difluorobenzene (CAS 179737-33-8)
- 1,2-Dibromo-3,4-difluorobenzene (CAS 811713-01-6)
- 1,3-Dibromo-2,4-difluorobenzene (CAS 219926-41-7)
- 1,4-Dibromo-2,5-difluorobenzene (CAS 327-51-5)
Recommended Standards
- 5-Bromo-2,4-dichloro-3-nitropyridine (CAS 856850-68-5)
- 3,5-Dibromodihydro-2H-pyran-2,6(3H)-dione (CAS 121049-89-6)
- 3-Bromo-2,6-dichloro-5-nitropyridine (CAS 2091687-88-4)
- 1,4-Dibromo-piperazine-2,5-dione (CAS 37636-53-6)
- 7-Chloro-2-methylimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1159829-22-7)
- (R)-(-)-Phenylephrine-2,4,6-d3 (CAS 1276197-50-2)
- 2-(2-Bromophenyl)-5-chloro-1h-1,3-benzodiazole (CAS 14225-83-3)
- 2879-20-1 3',4'-EthylenedioxyacetophenonE;1-(2,3-Dihydro-1,4-benzodioxin-6-yl)ethan-1-one;1-(2,3-Dihydro-1,4-benzodioxin-6-yl)ethanone 6-Acetyl-1,4-benzodioxane A25562 (CAS 2879-20-1)
- tert-Butyl 2,3-difluoro-4-nitrobenzoate (CAS 2641113-93-9)
- (S)-N-[2-(5-Bromo-2,3-dihydro-6-methoxy-1H-inden-1-YL)ethyl]propanamide (CAS 196597-83-8)
- (R)-2-Acetamido-3-(((5-ethoxy-1,2,4-thiadiazol-3-yl)methyl)thio)propanoic acid (CAS 138612-60-9)
- Ethyl 3-oxobicyclo[2.2.1]heptane-2-carboxylate (CAS 116530-29-1)
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- [α-Glu](Sidechain trans-position)-Liraglutide (CAS CATO-C4X-199240)
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