5-Methoxy-4,8,8-trimethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one CAS 27305-29-9

Purity 97%+In StockPharmaceutical Standards
CAS No.27305-29-9
Molecular FormulaC16H18O4
Molecular Weight274.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methoxy-4,8,8-trimethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one CAS 27305-29-9 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-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.

Physical & Chemical Properties

Molecular FormulaC16H18O4
Molecular Weight274.31 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964

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