2-Bromo-1,3-bis(difluoromethyl)benzene CAS 79839-50-2
| CAS No. | 79839-50-2 |
| Molecular Formula | C8H5BrF4 |
| Molecular Weight | 257.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Bromo-1,3-bis(difluoromethyl)benzene is closely related to fluorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Bromo-1,3-bis(difluoromethyl)benzene (CAS 79839-50-2), molecular formula C8H5BrF4 and molecular weight 257.02 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine/bromine substitution, an aromatic ring system, 2-Bromo-1,3-bis(difluoromethyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 257.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H5BrF4 |
| Molecular Weight | 257.02 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.) | 1979 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 2-Bromo-1-fluoro-4-(2,2,2-trifluoroethyl)benzene (CAS 1099598-18-1)
- 1-Bromo-4-fluoro-2-(2,2,2-trifluoroethyl)benzene (CAS 1186194-80-8)
- 2-Bromo-4-fluoro-1-(2,2,2-trifluoroethyl)-benzene (CAS 1186194-81-9)
- 4-Bromo-1-fluoro-2-(2,2,2-trifluoroethyl)benzene (CAS 1186195-21-0)
- 4-(2-Bromo-1,1-difluoroethyl)-1,2-difluorobenzene (CAS 1254038-53-3)
- 4-Bromo-2-fluoro-1-(2,2,2-trifluoroethyl)benzene (CAS 1256841-61-8)
- 1-Bromo-3,5-bis(difluoromethyl)benzene (CAS 1379370-60-1)
- 1-Bromo-4-(1,1,2,2-tetrafluoroethyl)benzene (CAS 1783392-06-2)
Recommended Standards
- 2-Bromo-1-(fluoromethyl)-3-(trifluoromethyl)benzene (CAS 2244087-97-4)
- 2-Bromo-4-(fluoromethyl)-1-(trifluoromethyl)benzene (CAS 2244087-06-5)
- 2-(Bromomethyl)-4-fluoro-1-(trifluoromethyl)benzene (CAS 239135-48-9)
- 2-Bromo-4-fluoro-3-methyl-1-(trifluoromethyl)benzene (CAS 2167902-49-8)
- 4-(Chloromethyl)-5-fluoro-2-methoxypyridine (CAS 1227585-67-2)
- 5-(4-Aminophenyl)furan-2-carbaldehyde (CAS 57023-90-2)
- 1-Methyl-5-(4-(pyridin-2-yl)piperazin-1-yl)-3-(trifluoromethyl)-1H-pyrazole-4-carbonitrile (CAS 324009-11-2)
- 2-Chloro-n-(3,5-dimethoxyphenyl)propanamide (CAS 790232-30-3)
- 2,4-Dihydroxyfuro[3,4-d]pyrimidin-7(5H)-one (CAS 4156-75-6)
- Tert-butyl (1-(2-hydroxyethyl)piperidin-4-yl)(methyl)carbamate (CAS 1353960-55-0)
- 5-Chloro-8-((4-methoxy-6-(trifluoromethyl)pyrimidin-2-yl)oxy)quinoline (CAS 551920-88-8)
- 3-Chloro-6-cyclobutylpyridazine (CAS 1255098-99-7)
- Ethyl (1S,2S)-2-methylcyclopropane-1-carboxylate (CAS 16764-71-9)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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