5,7,4'-Trimethoxyflavone CAS 5631-70-9
| CAS No. | 5631-70-9 |
| Molecular Formula | C18H16O5 |
| Molecular Weight | 312.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5,7,4'-Trimethoxyflavone.
CATO supplies 5,7,4'-Trimethoxyflavone (CAS 5631-70-9), a certified reference material (molecular formula C18H16O5, MW 312.32 g/mol) for analytical method development and quality control.
5,7,4'-Trimethoxyflavone (C18H16O5) contains a flavonoid core, a hydroxyl group, an ether linkage. 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.
CATO manufactures 5,7,4'-Trimethoxyflavone 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 | C18H16O5 |
| Molecular Weight | 312.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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.) | 1958 |
Related Trimethoxyflavone Standards
Recommended Standards
- H-His-AMC (CAS 191723-64-5)
- Pigment Violet 19 (CAS 1047-16-1)
- Boc-Pro-OSu (CAS 3392-10-7)
- N-Benzyl-2-(3-ethyl-7-oxo-3,7-dihydro-6H-[1,2,3]triazolo[4,5-d]pyrimidin-6-yl)acetamide (CAS 1070807-17-8)
- 2-(1-(Methylamino)ethyl)quinazolin-4(1H)-one (CAS 143993-15-1)
- (Z)-N'-hydroxy-2-(4-nitrophenoxy)acetimidamide (CAS 874781-99-4)
- Coppertartrate (CAS 27004-40-6)
- 5-bromo-3-methyl-3H-pyridin-4-one (CAS 1822926-68-0)
- tert-Decanoic acid, zinc salt (CAS 84370-79-6)
- 2-Amino-4-(3,4-difluorophenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile (CAS 331977-28-7)
- Methyl 2-(4-phenylthiazol-2-yl)acetate (CAS 93001-82-2)
- 6-Chloro-N-(1-phenylethyl)pyridazin-3-amine (CAS 1036555-53-9)
- 2-(4-Chloro-3-methylphenoxy)acetic acid (CAS 588-20-5)
- Biotinyl-Pancreatic Polypeptide (human) trifluoroacetate salt (CAS 1816258-36-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com