5,7-Dihydroxy-2-(4-methoxyphenyl)-6-((2S,3S,4R,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-4H-chromen-4-one CAS 4328-19-2
| CAS No. | 4328-19-2 |
| Molecular Formula | C22H22O10 |
| Molecular Weight | 446.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5,7-Dihydroxy-2-(4-methoxyphenyl)-6-((2S,3S,4R,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-4H-chromen-4-one is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5,7-Dihydroxy-2-(4-methoxyphenyl)-6-((2S,3S,4R,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-4H-chromen-4-one (CAS 4328-19-2), molecular formula C22H22O10 and molecular weight 446.40 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5,7-Dihydroxy-2-(4-methoxyphenyl)-6-((2S,3S,4R,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-4H-chromen-4-one (C22H22O10) 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).
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-Dihydroxy-2-(4-methoxyphenyl)-6-((2S,3S,4R,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-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 | C22H22O10 |
| Molecular Weight | 446.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
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Recommended Standards
- 5-((2-Ethoxyphenyl)amino)-6-hydroxypyrimidin-4(3H)-one (CAS 89595-66-4)
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- 4,4'-Dimethoxy-2,2'5,5'-tetraacetoxybiphenyl (CAS 7461-72-5)
- 7-(((2S,3R,4R,5S,6R)-3,4-Dihydroxy-6-(hydroxymethyl)-5-methoxytetrahydro-2H-pyran-2-yl)oxy)-5-hydroxy-3-(4-hydroxyphenyl)-4H-chromen-4-one (CAS 950910-16-4)
- 5,8-Dimethyl-1,2-dihydroquinolin-2-one (CAS 37509-60-7)
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- tert-Butyl ((2,3-dihydropyrazolo[5,1-b]oxazol-3-yl)methyl)carbamate (CAS 2676868-33-8)
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