6-Ethyl-2-methyl-4-quinolinecarboxylic acid hydrate CAS 1609404-19-4

Description

Compared with other compounds in its class, the molecular weight of 233.27 g/mol gives 6-Ethyl-2-methyl-4-quinolinecarboxylic acid hydrate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

6-Ethyl-2-methyl-4-quinolinecarboxylic acid hydrate (CAS 1609404-19-4) is a high-purity analytical reference standard with the molecular formula C13H13NO2H2O and a molecular weight of 233.27 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 6-Ethyl-2-methyl-4-quinolinecarboxylic acid hydrate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 233.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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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