1-Bromo-4-(5-bromopentyl)benzene CAS 28026-32-6
| CAS No. | 28026-32-6 |
| Molecular Formula | C11H14Br2 |
| Molecular Weight | 306.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Bromo-4-(5-bromopentyl)benzene (CAS 28026-32-6), molecular formula C11H14Br2 and molecular weight 306.04 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to bromine substitution, an aromatic ring system, 1-Bromo-4-(5-bromopentyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 306.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C11H14Br2 |
| Molecular Weight | 306.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| 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.) | 1965 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 1-Bromo-2-(3-bromo-2,2-dimethylpropyl)benzene (CAS 1488005-73-7)
- 1-Bromo-4-(3-bromo-2,2-dimethylpropyl)benzene (CAS 1494008-96-6)
- 1-Bromo-2-(3-bromopropyl)-4-ethylbenzene (CAS 1804252-55-8)
- 2-Bromo-1-(bromomethyl)-4-tert-butylbenzene (CAS 246139-76-4)
- 2-Bromo-4-difluoromethoxy-5-(trifluoromethyl)aniline (CAS 1804402-02-5)
- 2-Bromo-6-(difluoromethoxy)-4-(trifluoromethyl)aniline (CAS 1804402-11-6)
- 4-Bromo-2-(difluoromethoxy)-3-(trifluoromethyl)aniline (CAS 1804402-35-4)
- 4-Bromo-2-(difluoromethyl)-6-methoxy-3-(trifluoromethyl)pyridine (CAS 1804464-74-1)
Recommended Standards
- Anastrozole Impurity 30 (CAS CATO-C4X-123930)
- 2-Iodo-5-(methoxycarbonyl)benzoic acid (CAS 1048025-64-4)
- 1,1,1,2,2-Pentafluoro-2-(2-iodo-ethylsulfanyl)-ethane (CAS 1206523-87-6)
- 2-Iodo-3-(methoxycarbonyl)benzoic acid (CAS 106589-19-9)
- 2,3,5-Trichlorophenol (CAS 933-78-8)
- 4-(Chloromethyl)-6-fluoro-3,4'-bipyridine (CAS 1227576-24-0)
- 1-(3-Methylisoxazol-5-yl)cyclobutanecarboxylic acid (CAS 1535427-10-1)
- Tris(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)tin hydride (CAS 175354-32-2)
- (2E)-3-(2,3-Dimethoxyphenyl)-1-(4-nitrophenyl)prop-2-en-1-one (CAS 39060-03-2)
- Methyl 6-bromo-1-isopropyl-3-methyl-1H-indazole-4-carboxylate (CAS 1346702-97-3)
- 1-(chloromethyl)-3-(2-methylpropoxy)benzene (CAS 1036486-25-5)
- Ethyl 3-amino-5-bromothiophene-2-carboxylate (CAS 1418215-46-9)
- 1-Methyl-4-(trifluoromethyl)quinolin-2(1H)-one (CAS 732301-27-8)
- Liraglutide Impurity 20 TFA Salt (CAS CATO-C4X-199220)
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