5,7,8-Trimethoxy-3-(4-methoxyphenyl)-4H-chromen-4-one CAS 13539-23-6
| CAS No. | 13539-23-6 |
| Molecular Formula | C19H18O6 |
| Molecular Weight | 342.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,7,8-Trimethoxy-3-(4-methoxyphenyl)-4H-chromen-4-one (CAS 13539-23-6) is a high-purity analytical reference standard with the molecular formula C19H18O6 and a molecular weight of 342.34 g/mol.
The molecular framework of 5,7,8-Trimethoxy-3-(4-methoxyphenyl)-4H-chromen-4-one (C19H18O6) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5,7,8-Trimethoxy-3-(4-methoxyphenyl)-4H-chromen-4-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 | C19H18O6 |
| Molecular Weight | 342.34 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1960 |
Related Trimethoxy Standards
- 3,5,7-Trimethoxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 16692-52-7)
- 1-Benzyl-5,6,7-trimethoxy-1h-indole-2-carboxylic acid (CAS 1240571-20-3)
- 1-Benzyl-4,5,6-trimethoxy-1h-indole-2-carboxylic acid (CAS 1240571-67-8)
- 5,6,7-Trimethoxy-2-(4-methoxyphenyl)chroman-4-one (CAS 2569-77-9)
- 2,3,4-Trimethoxy-N-(2-(pyrrolidin-1-yl)ethyl)benzenesulfonamide (CAS 103595-49-9)
- (Z)-1,2,3-trimethoxy-5-(4-methoxy-3-nitrostyryl)benzene (CAS 162705-13-7)
- 1,2,3-trimethoxy-4,5-dihydro-6H-dibenzo[de,g]quinoline-6-carbaldehyde (CAS 107633-69-2)
- 2,3,4-Trimethoxy-N-propyl-N-(thiophen-3-ylmethyl)benzamide (CAS 1235011-78-5)
Recommended Standards
- Elmycin B (CAS 128233-09-0)
- (S)-2,2'-Dihydroxy-[1,1'-binaphthalene]-3,3'-dicarboxal dehyde (CAS 141779-46-6)
- [1,1'-Binaphthalene]-4,4'-dicarboxylic acid (CAS 123524-53-8)
- VU-0466551 (CAS 1448705-06-3)
- 6-(Difluoromethoxy)isoquinolin-1(2H)-one (CAS 630423-41-5)
- N-propylpiperidine-3-carboxamide (CAS 1016521-91-7)
- 5-(1-Bromoethyl)-1,2,3-trimethoxybenzene (CAS 1094792-22-9)
- 2-((4,6-Dimethoxy-5-nitropyrimidin-2-yl)amino)ethanesulfonamide (CAS 918445-46-2)
- Dimethyl 2-((2,4-dimethoxybenzyl)amino)malonate (CAS 439089-66-4)
- (S)-2-(4-bromo-2,3,5,6-tetrafluorophenyl)pyrrolidine (CAS 1241681-74-2)
- N-(4-chlorophenyl)-2-(pyridin-4-yl)thiazole-4-carboxamide (CAS 286860-10-4)
- 7-Chloro-6-iodoquinolin-4(1h)-one (CAS 1021913-03-0)
- Tert-butyl (3R,4R)-3-amino-4-(hydroxymethyl)piperidine-1-carboxylate (CAS 923956-61-0)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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