3-Chloro-2H-benzo[h]chromen-2-one CAS 20875-73-4

Description

The occurrence of 3-Chloro-2H-benzo[h]chromen-2-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 3-Chloro-2H-benzo[h]chromen-2-one (CAS 20875-73-4), a certified reference material (molecular formula C13H7ClO2, MW 230.65 g/mol) for analytical method development and quality control.

Based on its molecular formula C13H7ClO2, 3-Chloro-2H-benzo[h]chromen-2-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 230.65 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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