2',5'-dimethoxy-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde CAS 111759-27-4
| CAS No. | 111759-27-4 |
| Molecular Formula | C22H18O4 |
| Molecular Weight | 346.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2',5'-dimethoxy-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde (CAS 111759-27-4) is a high-purity analytical reference standard with the molecular formula C22H18O4 and a molecular weight of 346.38 g/mol.
2',5'-dimethoxy-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde (C22H18O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 2',5'-dimethoxy-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde 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 | C22H18O4 |
| Molecular Weight | 346.38 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1988 |
Related dimethoxy Standards
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Recommended Standards
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- 2',5'-Dimethyl-[1,1':4',1''-terphenyl]-4,4''-dicarboxylic acid (CAS 115213-33-7)
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- Ethyl 6-bromo-4-(trifluoromethyl)quinoline-2-carboxylate (CAS 2314382-12-0)
- D-Ser12-Semaglutide (CAS CATO-C4X-2226240)
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