Hydroxychloroquine R-isomer Impurity CAS 137433-23-9

Description

Compared with other compounds in its class, the molecular weight of 335.87 g/mol gives Hydroxychloroquine R-isomer Impurity distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Hydroxychloroquine R-isomer Impurity (CAS 137433-23-9) is a certified pharmaceutical impurity reference standard with the molecular formula C18H26ClN3O and a molecular weight of 335.87 g/mol.

Based on its molecular formula C18H26ClN3O, Hydroxychloroquine R-isomer Impurity contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 335.87 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.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

CATO manufactures Hydroxychloroquine R-isomer Impurity under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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