Tolvaptan Impurity 127 CAS CATO-C4X-1955127

Description

The occurrence of Tolvaptan Impurity 127 is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Tolvaptan Impurity 127 (CAS CATO-C4X-1955127) is a certified pharmaceutical impurity reference standard with the molecular formula C17H15Cl2NO3S and a molecular weight of 384.28 g/mol.

Based on its molecular formula C17H15Cl2NO3S, Tolvaptan Impurity 127 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 384.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 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 Tolvaptan Impurity 127 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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