Ensifentrine impurity 48 CAS 20488-59-9

Description

Compared with other compounds in its class, the molecular weight of 266.38 g/mol gives Ensifentrine impurity 48 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ensifentrine impurity 48 (CAS 20488-59-9), a pharmacopoeial impurity reference standard (molecular formula C18H22N2, MW 266.38 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Ensifentrine impurity 48 (C18H22N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 266.38 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 Ensifentrine impurity 48 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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