2-chloro-4-methoxy-3-nitro-pyridine CAS 6980-09-2

Description

Compared with other compounds in its class, the molecular weight of 194.62 g/mol gives 2-chloro-4-methoxy-3-nitro-pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-chloro-4-methoxy-3-nitro-pyridine (CAS 6980-09-2), molecular formula C6H11ClN2O3 and molecular weight 194.62 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-chloro-4-methoxy-3-nitro-pyridine (C6H11ClN2O3) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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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