5,3’-Dihydroxy-7,4’-dimethoxyflavone CAS 32174-62-2
| CAS No. | 32174-62-2 |
| Molecular Formula | C17H14O6 |
| Molecular Weight | 314.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,3’-Dihydroxy-7,4’-dimethoxyflavone (C17H14O6) 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 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).
5,3’-Dihydroxy-7,4’-dimethoxyflavone (CAS 32174-62-2) is a high-purity analytical reference standard with the molecular formula C17H14O6 and a molecular weight of 314.29 g/mol.
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), 5,3’-Dihydroxy-7,4’-dimethoxyflavone 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 | C17H14O6 |
| Molecular Weight | 314.29 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.) | 1966 |
Related Dihydroxy Standards
- 5,4'-Dihydroxy-7,3'-dimethoxyisoflavone (CAS 104668-88-4)
- 1,4-Dihydroxy-5,8-dimethoxy-2-methylanthracene-9,10-dione (CAS 108971-90-0)
- 3,5-Dihydroxy-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 15486-33-6)
- 1,6-Dihydroxy-5-methoxy-2-(methoxymethyl)anthracene-9,10-dione (CAS 877238-55-6)
- 3,7-Dihydroxy-3',4'-dimethoxyflavone (CAS 93322-61-3)
- 5,7-Dihydroxy-3-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 20869-95-8)
- 5,7-dihydroxy-6,8-dimethoxy-2-phenyl-4H-chromen-4-one (CAS 3162-45-6)
- 1-(2,4-dihydroxy-6-methoxy-3-methylphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one (CAS 109471-13-8)
Recommended Standards
- 5-(Hydroxymethyl)-1-((3aR,4R,6R,6aR)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)pyrimidine-2,4(1H,3H)-dione (CAS 3816-77-1)
- 4,4'-Bi(1,2-naphthoquinone) (CAS 64517-67-5)
- 3-Methoxy-4-((3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)benzaldehyde (CAS 83662-01-5)
- 5-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one (CAS 25739-41-7)
- Tralopyril (CAS 122454-29-9)
- Benzo[d]oxazol-6-ylmethanamine (CAS 872047-63-7)
- 5-Cyclopentyl-4-ethyl-4h-1,2,4-triazole-3-thiol (CAS 667412-81-9)
- Oseltamivir impurity 273 (CAS CATO-C4X-1720273)
- 2-bromo-5-chloro-3-methylaniline (CAS 631910-14-0)
- 2,6-Dimethyl-alpha-(trifluoromethyl)benzyl Alcohol (CAS 1379327-82-8)
- Bis(benzo[d]thiazol-2-yl)methane (CAS 1945-78-4)
- 2-(4-Bromophenyl)-8-chloro-6-(trifluoromethyl)imidazo[1,2-a]pyridine (CAS 284674-73-3)
- 1,4,5,8-Tetraamino-2,7-dipropoxyanthracene-9,10-dione (CAS 88601-64-3)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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