5,6-dimethyl-3,4-dihydro-2H-1-benzopyran-4-one CAS 96401-67-1
| CAS No. | 96401-67-1 |
| Molecular Formula | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,6-dimethyl-3,4-dihydro-2H-1-benzopyran-4-one (CAS 96401-67-1) is a high-purity analytical reference standard with the molecular formula C11H12O2 and a molecular weight of 176.21 g/mol.
5,6-dimethyl-3,4-dihydro-2H-1-benzopyran-4-one (C11H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 5,6-dimethyl-3,4-dihydro-2H-1-benzopyran-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 | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
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Recommended Standards
- 5,6-Dimethoxy-1H-indene (CAS 40243-67-2)
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- Liraglutide Impurity 18 TFA Salt (CAS CATO-C4X-199218)
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