3-(2-Oxo-2H-chromen-3-yl)benzoic acid CAS 443292-41-9

Purity 97%+In StockPharmaceutical Standards
CAS No.443292-41-9
Molecular FormulaC16H10O4
Molecular Weight266.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(2-Oxo-2H-chromen-3-yl)benzoic acid CAS 443292-41-9 chemical structure

Description

CATO manufactures 3-(2-Oxo-2H-chromen-3-yl)benzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

3-(2-Oxo-2H-chromen-3-yl)benzoic acid (CAS 443292-41-9), molecular formula C16H10O4 and molecular weight 266.25 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3-(2-Oxo-2H-chromen-3-yl)benzoic acid (C16H10O4) 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 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.

Physical & Chemical Properties

Molecular FormulaC16H10O4
Molecular Weight266.25 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025

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