2-(2-Chlorophenyl)-8-ethylquinoline-4-carboxylic acid CAS 667435-74-7

Description

Compared with other compounds in its class, the molecular weight of 311.76 g/mol gives 2-(2-Chlorophenyl)-8-ethylquinoline-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(2-Chlorophenyl)-8-ethylquinoline-4-carboxylic acid (CAS 667435-74-7), molecular formula C18H14ClNO2 and molecular weight 311.76 g/mol, is a CATO reference standard with documented purity and traceability.

2-(2-Chlorophenyl)-8-ethylquinoline-4-carboxylic acid (C18H14ClNO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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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