7-Hydroxy-8-methyl-4-phenyl-2h-chromen-2-one CAS 21392-48-3
| CAS No. | 21392-48-3 |
| Molecular Formula | C16H12O3 |
| Molecular Weight | 252.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Hydroxy-8-methyl-4-phenyl-2h-chromen-2-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.
CATO supplies 7-Hydroxy-8-methyl-4-phenyl-2h-chromen-2-one (CAS 21392-48-3), a certified reference material (molecular formula C16H12O3, MW 252.26 g/mol) for analytical method development and quality control.
Structurally, 7-Hydroxy-8-methyl-4-phenyl-2h-chromen-2-one (C16H12O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 252.26 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C16H12O3 |
| Molecular Weight | 252.26 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1963 |
Related Hydroxy Standards
- (2-Hydroxy-5-methyl-1,3-phenylenE)bis(methylenE) diacetate (CAS 109129-38-6)
- (2Z)-6-Hydroxy-2-(4-methylbenzylidene)-1-benzofuran-3(2H)-one (CAS 1234351-94-0)
- 1-Hydroxy-2,3-dimethylanthracene-9,10-dione (CAS 147088-69-5)
- 3-Benzyl-4-hydroxy-2h-chromen-2-one (CAS 15074-18-7)
- 7-Hydroxy-3-methyl-2-phenyl-4H-chromen-4-one (CAS 18651-15-5)
- 3-(4-hydroxyÂbenzÂoylÂ)-2-methyl-benzÂofuran (CAS 52490-47-8)
- 5-Hydroxy-7-methyl-4-phenyl-2H-chromen-2-one (CAS 52604-30-5)
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Recommended Standards
- 7-Hydroxy-4-methyl-3-phenyl-2h-chromen-2-one (CAS 2555-23-9)
- 8-Methoxy-3-phenyl-2H-chromen-2-one (CAS 23000-32-0)
- 7-Hydroxy-3-methyl-4-phenyl-2H-chromen-2-one (CAS 54431-13-9)
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