(E)-1,2-Bis(3,5-dibromophenyl)ethene CAS 667467-09-6
| CAS No. | 667467-09-6 |
| Molecular Formula | C14H8Br4 |
| Molecular Weight | 495.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-1,2-Bis(3,5-dibromophenyl)ethene.
(E)-1,2-Bis(3,5-dibromophenyl)ethene (CAS 667467-09-6), molecular formula C14H8Br4 and molecular weight 495.83 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H8Br4, (E)-1,2-Bis(3,5-dibromophenyl)ethene contains bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 495.83 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.
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), (E)-1,2-Bis(3,5-dibromophenyl)ethene 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 | C14H8Br4 |
| Molecular Weight | 495.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
Recommended Standards
- N-[[(1R,4aS,10aR)-1,2,3,4,4a,9,10,10a-Octahydro-1,4a-dimethyl-7-isopropyl-1-phenanthrenyl]methyl]-N'-[(1R,2R)-2-(1-pyrrolidinyl)cyclohexyl]thiourea (CAS 1219925-58-2)
- Ethyl 2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)(4-(trifluoromethyl)phenyl)amino)thiazole-4-carboxylate (CAS 860784-00-5)
- N-[[(1R,4aS,10aR)-1,2,3,4,4a,9,10,10a-Octahydro-1,4a-dimethyl-7-isopropyl-1-phenanthrenyl]methyl]-N'-[(1S,2S)-2-(1-pyrrolidinyl)cyclohexyl]thiourea (CAS 1219925-57-1)
- N1-[3,5-di(trifluoromethyl)phenyl]-2-{[5-(6-chloro-3-pyridyl)-4-methyl-4H-1,2,4-triazol-3-yl]thio}acetamide (CAS 228580-45-8)
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- 2-(Triethylstannyl)anthracene-9,10-dione (CAS 110138-71-1)
- 2-(2-Bromo-6-(bromomethyl)-3-(difluoromethyl)pyridin-4-yl)acetic acid (CAS 1804490-90-1)
- 898785-85-8 Methyl 4-(2-methoxypyridine-3-carbonyl)benzoate DTXSID10642157 (CAS 898785-85-8)
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