3-(((3S,4R,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-chromen-4-one CAS 72581-58-9
| CAS No. | 72581-58-9 |
| Molecular Formula | C20H18O11 |
| Molecular Weight | 434.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-(((3S,4R,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-chromen-4-one (CAS 72581-58-9), molecular formula C20H18O11 and molecular weight 434.35 g/mol, is a CATO reference standard with documented purity and traceability.
3-(((3S,4R,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-chromen-4-one (C20H18O11) 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).
As a certified reference material (CRM), 3-(((3S,4R,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-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 | C20H18O11 |
| Molecular Weight | 434.35 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.) | 1977 |
Recommended Standards
- (2-Bromophenyl)(3-(phenylsulfonyl)-8-azabicyclo[3.2.1]octan-8-yl)methanone (CAS 1704515-62-7)
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- N-(4-(trifluoromethyl)phenyl)-7-(3-(trifluoromethyl)pyridin-2-yl)quinazolin-4-amine (CAS 573678-04-3)
- 5-[(4-Bromophenyl)sulfanyl]-3-(4-methylphenyl)-6-phenyl-1,2,4-triazine (CAS 866136-23-4)
- 2-{[(4-chlorophenyl)methyl]sulfanyl}-4-(morpholin-4-yl)-5,6,7,8-tetrahydroquinazoline (CAS 339019-12-4)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (3-(4-bromothiazol-5-yl)phenyl)boronate (CAS 2223032-07-1)
- 2-(3-methylpyridin-4-yl)ethan-1-amine (CAS 910399-93-8)
- 4-(Difluoromethyl)-3-iodo-2-methoxy-5-nitropyridine (CAS 1806984-75-7)
- 2-(4-Methylphenyl)cyclohexan-1-one (CAS 52776-14-4)
- 5-Bromo-2-(1-(4-chlorophenyl)-1H-pyrazol-5-yl)phenol (CAS 1202028-77-0)
- 3-chloranyl-4-nitro-1-oxidanidyl-pyridin-1-ium 3-chloro-4-nitro-1-oxidopyridin-1-ium 76439-45-7 A838704 (CAS 76439-45-7)
- 3,5-Dihydroxy-2-phenyl-4H-chromen-4-one (CAS 6665-69-6)
- 4-(1h-1,3-Benzodiazol-1-yl)benzene-1-carboximidamide hydrochloride (CAS 1235441-72-1)
- Insulin Degludec Impurity 19 (CAS CATO-C4X-215719)
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