1-Ethyl-6,8-difluoro-2-methylquinolin-4(1H)-one CAS 1210975-11-3

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Ethyl-6,8-difluoro-2-methylquinolin-4(1H)-one.

1-Ethyl-6,8-difluoro-2-methylquinolin-4(1H)-one (CAS 1210975-11-3), molecular formula C12H11F2NO and molecular weight 223.22 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C12H11F2NO, 1-Ethyl-6,8-difluoro-2-methylquinolin-4(1H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 223.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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