Ropinirole Impurity 4 CAS 120427-93-2

Description

Compared with other compounds in its class, the molecular weight of 159.18 g/mol gives Ropinirole Impurity 4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ropinirole Impurity 4 (CAS 120427-93-2), a pharmacopoeial impurity reference standard (molecular formula C10H9NO, MW 159.18 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Ropinirole Impurity 4 (C10H9NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 159.18 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 Ropinirole 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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