1,4-Dibromo-2,5-diethylbenzene CAS 40787-48-2
| CAS No. | 40787-48-2 |
| Molecular Formula | C10H12Br2 |
| Molecular Weight | 292.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H12Br2, 1,4-Dibromo-2,5-diethylbenzene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 292.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
1,4-Dibromo-2,5-diethylbenzene (CAS 40787-48-2), molecular formula C10H12Br2 and molecular weight 292.01 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 1,4-Dibromo-2,5-diethylbenzene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H12Br2 |
| Molecular Weight | 292.01 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 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.) | 1968 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 3,4-Dibromo-n-butylbenzene (CAS 1160574-94-6)
- 1,3-Dibromo-5-(tert-butyl)benzene (CAS 129316-09-2)
- 1,4-Dibromo-2,3,5,6-tetramethylbenzene (CAS 1646-54-4)
- 1,2-Dibromo-3,4,5,6-tetramethylbenzene (CAS 36321-73-0)
- 1,2-Dibromo-4-tert-butylbenzene (CAS 6683-75-6)
- 1,3-Dibromo-5-isopropyl-2-methylbenzene (CAS 2624417-82-7)
- 2,5-Dibromo-1,3-diethylbenzene (CAS 314084-64-5)
- 3,5-Dibromo-4-n-butylbenzene (CAS 75894-94-9)
Recommended Standards
- 1,4-Bis(bromomethyl)-2,5-dimethylbenzene (CAS 35168-62-8)
- 1-Bromo-4-(4-bromobutyl)benzene (CAS 88999-91-1)
- 1,4-Bis(2-bromoethyl)benzene (CAS 4542-72-7)
- Anastrozole Impurity 31 (CAS CATO-C4X-123931)
- 5-(2-Nitrophenyl)furan-2-carbonyl chloride (CAS 61941-88-6)
- (5-Bromo-2-fluoro-3-methoxyphenyl)(4-methylpiperazin-1-yl)methanone (CAS 2586127-36-6)
- Fmoc-D-Phenylglycinol (CAS 215178-43-1)
- 3',5',6',7'-Tetrahydrospiro[cyclobutane-1,4'-imidazo[4,5-c]pyridin]-7'-ol (CAS 2138255-51-1)
- Methyl 2-(4-methylpiperidin-1-yl)acetate hydrochloride (CAS 1820684-70-5)
- Trimebutine EP Impurity E HCl (CAS 294882-33-0)
- 7,9-Dimethyl-11H-benzo[a]carbazole (CAS 1607470-15-4)
- 2-Chlorodibenzo-p-dioxin (CAS 39227-54-8)
- 2-((2,6-Dimethylphenyl)amino)-N-(7-(hydroxyamino)-7-oxoheptyl)-N-methylpyrimidine-5-carboxamide (CAS 1316214-61-5)
- Mast Cell Degranulating (MCD) Peptide (CAS 32908-73-9)
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