4,4'-((1E,1'E)-(2,5-Dimethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dibenzonitrile CAS 637037-82-2
| CAS No. | 637037-82-2 |
| Molecular Formula | C26H20N2O2 |
| Molecular Weight | 392.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4,4'-((1E,1'E)-(2,5-Dimethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dibenzonitrile (CAS 637037-82-2), a certified reference material (molecular formula C26H20N2O2, MW 392.45 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 4,4'-((1E,1'E)-(2,5-Dimethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dibenzonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 392.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 4,4'-((1E,1'E)-(2,5-Dimethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dibenzonitrile 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 | C26H20N2O2 |
| Molecular Weight | 392.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Recommended Standards
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