((1E,6E)-3,5-Dioxohepta-1,6-diene-1,7-diyl)bis(2-methoxy-4,1-phenylene) diacetate CAS 19697-86-0
| CAS No. | 19697-86-0 |
| Molecular Formula | C25H24O8 |
| Molecular Weight | 452.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
((1E,6E)-3,5-Dioxohepta-1,6-diene-1,7-diyl)bis(2-methoxy-4,1-phenylene) diacetate (CAS 19697-86-0) is a high-purity analytical reference standard with the molecular formula C25H24O8 and a molecular weight of 452.45 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, ((1E,6E)-3,5-Dioxohepta-1,6-diene-1,7-diyl)bis(2-methoxy-4,1-phenylene) diacetate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 452.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures ((1E,6E)-3,5-Dioxohepta-1,6-diene-1,7-diyl)bis(2-methoxy-4,1-phenylene) diacetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C25H24O8 |
| Molecular Weight | 452.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1962 |
Recommended Standards
- 5'-(4-Carboxyphenyl)-2'-methyl[1,1':3',1''-terphenyl]-4,4''-dicarboxylicacid (CAS 1774401-31-8)
- (2R,3S,4S,5R,6S)-2-(acetoxymethyl)-4-(allyloxy)-6-(4-methoxyphenoxy)tetrahydro-2H-pyran-3,5-diyl diacetate (CAS 343254-39-7)
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- 2-ethyl-6-phenoxy-1,4-dihydroquinolin-4-one (CAS 1155599-28-2)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
Why CATO?
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