Etoricoxib Impurity 72 CAS CATO-C4X-108072

Description

Compared with other compounds in its class, the molecular weight of 267.34 g/mol gives Etoricoxib Impurity 72 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Etoricoxib Impurity 72 (CAS CATO-C4X-108072) is a certified pharmaceutical impurity reference standard with the molecular formula C13H17NO3S and a molecular weight of 267.34 g/mol.

Structurally, Etoricoxib Impurity 72 (C13H17NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 267.34 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.

As a certified reference material (CRM), Etoricoxib Impurity 72 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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