2-Chloro-5-methoxy-3-methylquinoxaline CAS 30748-93-7

Description

Compared with other compounds in its class, the molecular weight of 208.64 g/mol gives 2-Chloro-5-methoxy-3-methylquinoxaline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 2-Chloro-5-methoxy-3-methylquinoxaline (CAS 30748-93-7), a certified reference material (molecular formula C10H9ClN2O, MW 208.64 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-Chloro-5-methoxy-3-methylquinoxaline is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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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