| CAS No. | 27305-29-9 |
| Molecular Formula | C16H18O4 |
| Molecular Weight | 274.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Methoxy-4,8,8-trimethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one.
5-Methoxy-4,8,8-trimethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one (CAS 27305-29-9) is a high-purity analytical reference standard with the molecular formula C16H18O4 and a molecular weight of 274.31 g/mol.
Based on its molecular formula C16H18O4, 5-Methoxy-4,8,8-trimethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 274.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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-Methoxy-4,8,8-trimethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]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.
| Molecular Formula | C16H18O4 |
| Molecular Weight | 274.31 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |