4-Methyl-2-oxo-2H-chromene-3-carboxylic acid CAS 833-31-8

Description

The occurrence of 4-Methyl-2-oxo-2H-chromene-3-carboxylic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Methyl-2-oxo-2H-chromene-3-carboxylic acid (CAS 833-31-8), molecular formula C11H8O4 and molecular weight 204.18 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H8O4, 4-Methyl-2-oxo-2H-chromene-3-carboxylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 204.18 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.

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.

CATO manufactures 4-Methyl-2-oxo-2H-chromene-3-carboxylic 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.

Physical & Chemical Properties

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