4,4'-(2,2-Diphenylethene-1,1-diyl)bis(bromobenzene) CAS 859315-37-0
| CAS No. | 859315-37-0 |
| 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 4,4'-(2,2-Diphenylethene-1,1-diyl)bis(bromobenzene) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4,4'-(2,2-Diphenylethene-1,1-diyl)bis(bromobenzene) (CAS 859315-37-0), molecular formula C26H18Br2 and molecular weight 490.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4,4'-(2,2-Diphenylethene-1,1-diyl)bis(bromobenzene) (C26H18Br2) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 490.23 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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), 4,4'-(2,2-Diphenylethene-1,1-diyl)bis(bromobenzene) 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.) | 1987 |
| Halogen Content | Br-containing |
Related Diphenylethene Standards
- 4,4'-((2,2-Diphenylethene-1,1-diyl)bis(4,1-phenylene))dipyridine (CAS 1839090-56-0)
- 3,3'-((2,2-Diphenylethene-1,1-diyl)bis(4,1-phenylene))dipyridine (CAS 2160539-20-6)
- 4',4'''-(2,2-diphenylethene-1,1-diyl)bis([1,1'-biphenyl]-4-amine) (CAS 1329620-17-8)
- 4,4'-(2,2-Diphenylethene-1,1-diyl)bis((bromomethyl)benzene) (CAS 1623085-88-0)
- 4',4'''-(1,2-Diphenylethene-1,2-diyl)bis([1,1'-biphenyl]-4-carbaldehyde) (CAS 1808111-59-2)
- 4',4'''-(2,2-Diphenylethene-1,1-diyl)bis([1,1'-biphenyl]-4-carbaldehyde) (CAS 2131097-89-5)
- 4,4'-(2,2-Diphenylethene-1,1-diyl)dibenzoic acid (CAS 1609575-40-7)
- ((1,2-Diphenylethene-1,2-diyl)bis(4,1-phenylene))diboronicacid (CAS 1054451-31-8)
Recommended Standards
- 1,2-Di(4-bromophenyl)-1,2-diphenylethylene (CAS 184239-35-8)
- 2-(2,4-Dichlorophenyl)-3-(4-(2,4-dichlorophenyl)thiazol-2-yl)-5-methylthiazolidin-4-one (CAS 866048-99-9)
- N1,N3-bis(2,4-dichlorophenyl)-2-(((2-(dimethylamino)ethyl)amino)methylene)malonamide (CAS 339276-41-4)
- Glutaraldehyde bis-(O-pentafluorophenylmethyloxime) (CAS 932710-48-0)
- 3-Amino-4,6-dimethyl-7-oxo-6,7-dihydrothieno[2,3-d]pyridazine-2-carboxylic acid (CAS 2089315-35-3)
- 1-(Carboxycarbonyl)cyclopropanecarboxylic acid (CAS 421548-65-4)
- Ethyl 3,5-dichloro-2-hydroxybenzoate (CAS 68276-69-7)
- 2-Methyl-3-(5-nitrofuran-2-carbonyl)indolizine-1-carbaldehyde (CAS 885457-18-1)
- (R)-2-([1,1'-Biphenyl]-3-ylmethyl)piperazine (CAS 1260589-62-5)
- 4-(2H-1,3-Benzodioxol-5-yl)-2-[(1H-1,2,4-triazol-1-yl)methyl]pyrimidine (CAS 685109-34-6)
- 2-(5-Bromo-2-pyridyl)-2-propanol (CAS 290307-40-3)
- n2,n2-Diethyl-3-methylbutane-1,2-diamine (CAS 860704-25-2)
- Artesunate Impurity 7 (CAS CATO-C4X-15477)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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