2,4-Dichloropyrimido[4,5-b]quinoline CAS 118726-21-9

Description

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.

2,4-Dichloropyrimido[4,5-b]quinoline (CAS 118726-21-9), molecular formula C11H5Cl2N3 and molecular weight 250.08 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H5Cl2N3, 2,4-Dichloropyrimido[4,5-b]quinoline contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 250.08 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.

Physical & Chemical Properties

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