1,2-Di(4-bromophenyl)-1,2-diphenylethylene CAS 184239-35-8
| CAS No. | 184239-35-8 |
| Molecular Formula | C26H18Br2 |
| Molecular Weight | 490.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 490.23 g/mol gives 1,2-Di(4-bromophenyl)-1,2-diphenylethylene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,2-Di(4-bromophenyl)-1,2-diphenylethylene (CAS 184239-35-8) is a high-purity analytical reference standard with the molecular formula C26H18Br2 and a molecular weight of 490.23 g/mol.
1,2-Di(4-bromophenyl)-1,2-diphenylethylene (C26H18Br2) contains bromine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,2-Di(4-bromophenyl)-1,2-diphenylethylene 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 | C26H18Br2 |
| Molecular Weight | 490.23 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Halogen Content | Br-containing |
Related Di Standards
- 4,7-Bis(4-bromophenyl)-1,10-phenanthroline (CAS 97802-08-9)
- N-(4-(4-Bromophenyl)thiazol-2-yl)-2-(methylthio)-N-((tetrahydrofuran-2-yl)methyl)nicotinamide (CAS 950064-08-1)
- 5-(3-Bromophenyl)-9-chloro-2-(naphthalen-2-yl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 303060-30-2)
- 5-(4-Bromophenyl)-3-(tert-butyl)-1-[2-(tetrahydro-2H-pyran-2-yloxy)ethyl]-6,7-dihydropyrazolo[4,3-e][1,4]diazepin-8(1H)-one (CAS 1424941-67-2)
- 4'-(2-Bromophenyl)-1'-methyl-1'',2,2'',4-tetrahydrodispiro[1-benzopyran-3,3'-pyrrolidine-2',3''-indole]-2'',4-dione (CAS 1177910-05-2)
- 1-(4-Bromophenyl)-3-((3-(trifluoromethyl)benzyl)thio)-6,7-dihydro-5H-cyclopenta[c]pyridine-4-carbonitrile (CAS 861209-35-0)
- (2E)-3-{4-[(4-bromophenyl)methoxy]phenyl}-N-[(3,4-dichlorophenyl)methyl]prop-2-enamide (CAS 477889-09-1)
- 4-(4-(4-Bromophenyl)-5-((3-(trifluoromethyl)benzyl)thio)-4H-1,2,4-triazol-3-yl)pyridine (CAS 477332-92-6)
Recommended Standards
- N1,N3-bis(2,4-dichlorophenyl)-2-(((2-(dimethylamino)ethyl)amino)methylene)malonamide (CAS 339276-41-4)
- 4,4'-(2,2-Diphenylethene-1,1-diyl)bis(bromobenzene) (CAS 859315-37-0)
- Arbidol Impurity 20 (CAS CATO-C4X-112920)
- 2-(2,4-Dichlorophenyl)-3-(4-(2,4-dichlorophenyl)thiazol-2-yl)-5-methylthiazolidin-4-one (CAS 866048-99-9)
- 3-Chloro-4-(trifluoromethyl)-5,6,7,8-tetrahydropyrido[3,2-c]pyridazin-8-ol (CAS 2913147-27-8)
- 1-(3-Chloropyridin-2-yl)ethanone (CAS 131109-75-6)
- 1-[(3,4-Dichlorophenyl)methyl]-1H-pyrazol-3-amine (CAS 895929-56-3)
- 1-(6-Methyl-2-oxohexahydropyrimidin-4-yl)urea (CAS 1129-42-6)
- 4-(1,3-Dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1h-purin-7-yl)butanoic acid (CAS 52083-48-4)
- 4-(5-Ethylpyrimidin-2-yl)phenol (CAS 110733-83-0)
- 5-Cyclopropyl-5,6-dihydro-4H-thieno[2,3-c]pyrrole-2-carboxylic acid (CAS 1400636-55-6)
- Potassium (2,4-difluoro-6-hydroxyphenyl)trifluoroborate (CAS 2641217-12-9)
- 3-(Dimethoxymethyl)-1,6-naphthyridine (CAS 1399653-66-7)
- Des-Gln19-Tirzepatide (CAS CATO-CPTD788954)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com