1,4-Bis((E)-4-bromostyryl)benzene CAS 58358-55-7
| CAS No. | 58358-55-7 |
| Molecular Formula | C22H16Br2 |
| Molecular Weight | 440.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,4-Bis((E)-4-bromostyryl)benzene 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.
1,4-Bis((E)-4-bromostyryl)benzene (CAS 58358-55-7), molecular formula C22H16Br2 and molecular weight 440.17 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,4-Bis((E)-4-bromostyryl)benzene (C22H16Br2) is characterized by bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C22H16Br2 |
| Molecular Weight | 440.17 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Br-containing |
Recommended Standards
- (S)-2,2'-Bis(bromomethyl)-1,1'-binaphthalene, 95% (99% ee) (CAS 37803-02-4)
- 2,2'-Bis(bromomethyl)-1,1'-binaphthalene (CAS 54130-90-4)
- Rp-8-Br-cGMPS (CAS 150418-07-8)
- 4,4'-Dibromo-2,2'-dimethyl-1,1'-binaphthalene (CAS 797035-61-1)
- 5-Bromo-4-fluoro-2-methoxypyridine (CAS 1207667-10-4)
- 2-[(2,6-Dichlorophenyl)sulfanyl]-5-(trifluoromethyl)benzonitrile (CAS 477866-72-1)
- 2-Amino-1-{4h,5h,6h,7h-thieno[3,2-c]pyridin-5-yl}pentan-1-one (CAS 1218585-07-9)
- 4-((1,5-Dimethyl-1H-pyrazol-3-yl)amino)-4-oxobutanoic acid (CAS 897354-98-2)
- (S)-[1,1'-Binaphthalene]-4,4'-diamine (CAS 18531-98-1)
- 5-Amino-2-propoxynicotinonitrile (CAS 1183538-15-9)
- 7-Bromoquinolin-4-amine (CAS 65340-74-1)
- Hydroxy-PEG1-acid (sodium) (CAS 2855229-28-4)
- 3-(((Tert-butoxycarbonyl)amino)methyl)-5-methylhexanoic acid (CAS 228104-41-4)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
Why CATO?
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