Alvimopan Impurity 4 CAS 156130-41-5

Description

Compared with other compounds in its class, the molecular weight of 367.48 g/mol gives Alvimopan Impurity 4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Alvimopan Impurity 4 (CAS 156130-41-5) is a certified pharmaceutical impurity reference standard with the molecular formula C23H29NO3 and a molecular weight of 367.48 g/mol.

Based on its molecular formula C23H29NO3, Alvimopan Impurity 4 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 367.48 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 Alvimopan Impurity 4 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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