1-Bromo-4-(2-bromo-1-fluoroethyl)benzene CAS 1297549-91-7
| CAS No. | 1297549-91-7 |
| Molecular Formula | C8H7Br2F |
| Molecular Weight | 281.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Bromo-4-(2-bromo-1-fluoroethyl)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.
1-Bromo-4-(2-bromo-1-fluoroethyl)benzene (CAS 1297549-91-7), molecular formula C8H7Br2F and molecular weight 281.95 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine/bromine substitution, an aromatic ring system, 1-Bromo-4-(2-bromo-1-fluoroethyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 281.95 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H7Br2F |
| Molecular Weight | 281.95 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.) | 1990 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 1-Bromo-4-(2-bromoethyl)-2-fluorobenzene (CAS 1331944-02-5)
- 4-Bromo-1-(2-bromoethyl)-2-fluorobenzene (CAS 1331944-48-9)
- 2-Bromo-4-(2-bromoethyl)-1-fluorobenzene (CAS 1341423-25-3)
- 1-Bromo-2-(2-bromoethyl)-4-fluorobenzene (CAS 1690789-24-2)
- 2-Bromo-3-(bromomethyl)-4-fluoro-1-methylbenzene (CAS 1824584-54-4)
- 1-Bromo-4-(bromomethyl)-5-fluoro-2-methylbenzene (CAS 2090512-31-3)
- 1-Bromo-5-(bromomethyl)-3-fluoro-2-methylbenzene (CAS 2090980-29-1)
- 1-bromo-3-(2,4-dichlorophenyl)propan-2-one (CAS 651358-40-6)
Recommended Standards
- 2,6-Dibromo-3-fluoro-p-xylene (CAS 1160574-44-6)
- 2-((Perchlorocyclopenta-2,4-dien-1-ylidene)methyl)furan (CAS 129958-47-0)
- Crisaborole Impurity 40 (CAS 2737-21-5)
- 5,6-Dibromo-2-methyl-2,3-dihydroimidazo[2,1-b]oxazole (CAS 591254-77-2)
- 4,6-Dichloro-2-(1H-pyrazol-1-yl)pyrimidine (CAS 1017781-89-3)
- (2s)-2-Amino-N-methyl-n,3-diphenylpropanamide hydrochloride (CAS 126090-43-5)
- 4-Butoxy-3-methoxybenzohydrazide (CAS 736948-95-1)
- Dibutyl Phosphate-d18 (CAS 156213-21-7)
- 2-(5-Methylisoxazol-3-yl)ethan-1-amine hydrochloride (CAS 1797983-79-9)
- 3-Amino-3-(5-ethylfuran-2-yl)propanamide (CAS 771520-94-6)
- 5-Bromo-2-(cyclohexylmethoxy)nicotinonitrile (CAS 1356073-62-5)
- (4-((Methylsulfonyl)methyl)phenyl)(pyrrolidin-1-yl)methanone (CAS 1209244-87-0)
- 5-(2,4-Dimethylphenyl)-1H-pyrazol-3-amine (CAS 416860-45-2)
- Des-Lys16-Tirzepatide (CAS CATO-CPTD788957)
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