(E,E)-1,5-Bis(p-methoxyphenyl)penta-1,4-dien-3-one CAS 37951-12-5
| CAS No. | 37951-12-5 |
| Molecular Formula | C19H18O3 |
| Molecular Weight | 294.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E,E)-1,5-Bis(p-methoxyphenyl)penta-1,4-dien-3-one (CAS 37951-12-5) is a high-purity analytical reference standard with the molecular formula C19H18O3 and a molecular weight of 294.34 g/mol.
(E,E)-1,5-Bis(p-methoxyphenyl)penta-1,4-dien-3-one (C19H18O3) contains a steroid 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), (E,E)-1,5-Bis(p-methoxyphenyl)penta-1,4-dien-3-one 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 | C19H18O3 |
| Molecular Weight | 294.34 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
Recommended Standards
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