6,2',4'-Trimethoxyflavone CAS 720675-74-1
| CAS No. | 720675-74-1 |
| Molecular Formula | C18H16O5 |
| Molecular Weight | 312.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,2',4'-Trimethoxyflavone (CAS 720675-74-1), molecular formula C18H16O5 and molecular weight 312.32 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6,2',4'-Trimethoxyflavone (C18H16O5) 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 6,2',4'-Trimethoxyflavone 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 | C18H16O5 |
| Molecular Weight | 312.32 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.) | 1986 |
Related Trimethoxyflavone Standards
Recommended Standards
- 5-Hydroxy-7-methoxy-2-(4-methoxyphenyl)-6-methyl-4H-chromen-4-one (CAS 5689-38-3)
- 6,7-Dimethoxy-1-(2-nitrophenyl)-3,4-dihydroisoquinoline (CAS 60888-85-9)
- 5,7,8-Trimethoxy-2-phenyl-4H-chromen-4-one (CAS 23050-38-6)
- 6-Amino-1-benzyl-5-[(furan-2-ylmethyl)amino]-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 726165-23-7)
- ((2R,3R,4S,5S,6S)-3,4,5-tris(Benzyloxy)-6-methoxytetrahydro-2H-pyran-2-yl)methanol (CAS 34212-64-1)
- 4-Chloro-2,6-bis(pyridin-2-yl)pyrimidine (CAS 10198-68-2)
- 4-((2-Hydroxyethyl)amino)tetrahydro-2h-thiopyran 1,1-dioxide (CAS 1153448-82-8)
- Cis-4-Phenylcyclohexan-1-ol (CAS 7335-12-8)
- tert-Butyl 6-chlorospiro[indene-1,4'-piperidine]-1'-carboxylate (CAS 855849-89-7)
- 7-(4-Fluoro-phenyl)-5-hydroxy-benzo[1,3]oxathiol-2-one (CAS 327078-62-6)
- 1-((4-Chloro-3-isocyanatophenyl)sulfonyl)-1,2,3,4-tetrahydroquinoline (CAS 914349-81-8)
- (3R,4S)-rel-4-(Pyridin-3-yl)pyrrolidine-3-carboxylic acid dihydrochloride (CAS 1330750-18-9)
- 1-Chloro-3-isopropoxy-5-methylbenzene (CAS 1369862-96-3)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
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