6,7-Dimethoxy-2-(4-methoxyphenethyl)-4H-chromen-4-one CAS 117596-92-6
| CAS No. | 117596-92-6 |
| Molecular Formula | C20H20O5 |
| Molecular Weight | 340.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
6,7-Dimethoxy-2-(4-methoxyphenethyl)-4H-chromen-4-one (CAS 117596-92-6), molecular formula C20H20O5 and molecular weight 340.37 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6,7-Dimethoxy-2-(4-methoxyphenethyl)-4H-chromen-4-one (C20H20O5) 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).
As a certified reference material (CRM), 6,7-Dimethoxy-2-(4-methoxyphenethyl)-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 | C20H20O5 |
| Molecular Weight | 340.37 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.) | 1990 |
Related Dimethoxy Standards
- 6,7-Dimethoxy-3-(((4-methoxyphenyl)amino)methyl)quinolin-2(1H)-one (CAS 1381260-70-3)
- 2',5'-Dimethoxy-[1,1':4',1''-terphenyl]-4,4''-dicarbonitrile (CAS 206867-52-9)
- 2,3-Dimethoxy-N-(4-phenylthiazol-2-yl)benzamide (CAS 922604-08-8)
- N-(4-(4,5-dimethoxy-1,3-dioxoisoindolin-2-yl)phenyl)acetamide (CAS 337933-01-4)
- 5,8-Dimethoxy-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 5428-14-8)
- 3,5-Dimethoxy-N-(4-(trifluoromethoxy)phenyl)benzamide (CAS 876535-43-2)
- 2,4-Dimethoxy-6-(1-methyl-1H-imidazole-4-sulfonamido)benzoic Acid (CAS 1333848-52-4)
- 2,4-Dimethoxy-6-(pyren-1-yl)-1,3,5-triazine (CAS 3271-22-5)
Recommended Standards
- (S)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-aminobutanoic acid (CAS 117106-22-6)
- N-(4,6-Difluorobenzo[d]thiazol-2-yl)-4-propyl-1,2,3-thiadiazole-5-carboxamide (CAS 1203320-51-7)
- N-{5-Acetyl-6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-2H-pyran-3-yl}-4-methylbenzenecarboxamide (CAS 1164563-84-1)
- HO-PEG6-CH2COOH (CAS 120394-66-3)
- N-(4-Fluorophenyl)-2-((2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinolin-5-yl)oxy)acetamide (CAS 850904-69-7)
- (3-Amino-2-methylphenyl)boronic acid (CAS 948592-66-3)
- 2,7-Dimethyl-9-oxo-9H-fluorene-4-carboxylic acid (CAS 500536-41-4)
- 4-(4-Methylphenyl)butan-2-amine (CAS 89538-71-6)
- 5,8-Dimethoxychroman-4-one (CAS 854843-02-0)
- 3-(Aminomethyl)-2-methylbenzoic acid (CAS 96084-41-2)
- 4-(1-(2-(Pyrrolidin-1-yl)ethyl)-4-(tetrahydro-2H-pyran-4-yl)-1H-imidazol-2-yl)piperidine (CAS 1295521-50-4)
- Guaiacol Carbonate (CAS 553-17-3)
- 2-(Ethylsulfanyl)-1-phenylethan-1-one (CAS 10271-55-3)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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