5-Hydroxy-3,7-dimethoxy-2-phenyl-4H-chromen-4-one CAS 70786-48-0
| CAS No. | 70786-48-0 |
| Molecular Formula | C17H14O5 |
| Molecular Weight | 298.29 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-Hydroxy-3,7-dimethoxy-2-phenyl-4H-chromen-4-one.
5-Hydroxy-3,7-dimethoxy-2-phenyl-4H-chromen-4-one (CAS 70786-48-0) is a high-purity analytical reference standard with the molecular formula C17H14O5 and a molecular weight of 298.29 g/mol.
The molecular framework of 5-Hydroxy-3,7-dimethoxy-2-phenyl-4H-chromen-4-one (C17H14O5) 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).
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-Hydroxy-3,7-dimethoxy-2-phenyl-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 | C17H14O5 |
| Molecular Weight | 298.29 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.) | 1977 |
Related Hydroxy Standards
- 3-Hydroxy-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 13198-99-7)
- 7-Hydroxy-5-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one (CAS 13698-23-2)
- 1-Hydroxy-5,8-dimethoxy-3-methylanthracene-9,10-dione (CAS 76696-04-3)
- 6-Hydroxy-7-methoxy-3-(4-methoxyphenyl)-4H-chromen-4-one (CAS 970-48-9)
- 7-Hydroxy-3-(4-methoxyphenoxy)-2-methyl-4h-chromen-4-one (CAS 297148-24-4)
- 8-Hydroxy-1,2-dimethoxy-3-methylanthracene-9,10-dione (CAS 82868-99-3)
- 5-Hydroxy-6,7-dimethoxy-2-phenyl-4H-chromen-4-one (CAS 740-33-0)
- 4-Hydroxy-1-naphthyl-1'-naphthyl ketone (CAS 432049-53-1)
Recommended Standards
- 5-{[(2-Fluorobenzyl)sulfonyl]methyl}-2-furoic acid (CAS 899710-21-5)
- 6-(4-Ethoxyphenyl)-3-methyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 953901-57-0)
- 5-(2-Hydroxybenzoyl)-1-(2-methoxyethyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 730951-39-0)
- 6-(Benzyloxy)-7-methoxyquinazoline-2,4(1H,3H)-dione (CAS 60547-99-1)
- 2-Fluoro-9H-fluoren-9-one (CAS 343-01-1)
- 2,4-Dimethylbenzofuran-3(2H)-one (CAS 54365-76-3)
- 5-Amino-1-(4-methylphenyl)-1H-pyrazole-4-carboxamide (CAS 100061-56-1)
- N1,N1'-(propane-1,3-diyl)bis(ethane-1,2-diamine) tetrahydrochloride (CAS 73082-39-0)
- 1-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)-1,3-diazinane-2,4,6-trione (CAS 303153-09-5)
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