6-Ethoxy-3-(4-methoxyphenyl)-4-methyl-2H-chromen-2-one CAS 263365-03-3

Purity 97%+In StockPharmaceutical Standards
CAS No.263365-03-3
Molecular FormulaC19H18O4
Molecular Weight310.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Ethoxy-3-(4-methoxyphenyl)-4-methyl-2H-chromen-2-one CAS 263365-03-3 chemical structure

Description

The occurrence of 6-Ethoxy-3-(4-methoxyphenyl)-4-methyl-2H-chromen-2-one is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 6-Ethoxy-3-(4-methoxyphenyl)-4-methyl-2H-chromen-2-one (CAS 263365-03-3), a certified reference material (molecular formula C19H18O4, MW 310.34 g/mol) for analytical method development and quality control.

The molecular framework of 6-Ethoxy-3-(4-methoxyphenyl)-4-methyl-2H-chromen-2-one (C19H18O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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), 6-Ethoxy-3-(4-methoxyphenyl)-4-methyl-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.

Physical & Chemical Properties

Molecular FormulaC19H18O4
Molecular Weight310.34 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025

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