2-((3-(2-Ethoxyphenoxy)-2-methyl-4-oxo-4h-chromen-7-yl)oxy)acetic acid CAS 929339-45-7

Purity 97%+In StockPharmaceutical Standards
CAS No.929339-45-7
Molecular FormulaC20H18O7
Molecular Weight370.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-((3-(2-Ethoxyphenoxy)-2-methyl-4-oxo-4h-chromen-7-yl)oxy)acetic acid CAS 929339-45-7 chemical structure

Description

2-((3-(2-Ethoxyphenoxy)-2-methyl-4-oxo-4h-chromen-7-yl)oxy)acetic acid (CAS 929339-45-7) is a high-purity analytical reference standard with the molecular formula C20H18O7 and a molecular weight of 370.35 g/mol.

Based on its molecular formula C20H18O7, 2-((3-(2-Ethoxyphenoxy)-2-methyl-4-oxo-4h-chromen-7-yl)oxy)acetic acid 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 370.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 2-((3-(2-Ethoxyphenoxy)-2-methyl-4-oxo-4h-chromen-7-yl)oxy)acetic acid 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 FormulaC20H18O7
Molecular Weight370.35 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 methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987

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