Hydroxychloroquine Impurity 69 DiHCl CAS 860544-46-3 (free base)

Description

Compared with other compounds in its class, the molecular weight of 166.69 g/mol gives Hydroxychloroquine Impurity 69 DiHCl distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Hydroxychloroquine Impurity 69 DiHCl (CAS 860544-46-3 (free base)), a pharmacopoeial impurity reference standard (molecular formula C7H18N2HCl, MW 166.69 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C7H18N2HCl, Hydroxychloroquine Impurity 69 DiHCl contains chlorine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 166.69 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.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

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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