6-Chloro-3-(3,4-dimethoxyphenyl)-4-methyl-2H-chromen-2-one CAS 720674-87-3

Description

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

6-Chloro-3-(3,4-dimethoxyphenyl)-4-methyl-2H-chromen-2-one (CAS 720674-87-3), molecular formula C18H15ClO4 and molecular weight 330.76 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C18H15ClO4, 6-Chloro-3-(3,4-dimethoxyphenyl)-4-methyl-2H-chromen-2-one contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 330.76 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.

As a certified reference material (CRM), 6-Chloro-3-(3,4-dimethoxyphenyl)-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

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