Upadacitinib Impurity 13 CAS 1708997-42-5

Description

Compared with other compounds in its class, the molecular weight of 543.64 g/mol gives Upadacitinib Impurity 13 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Upadacitinib Impurity 13 (CAS 1708997-42-5) is a certified pharmaceutical impurity reference standard with the molecular formula C29H29N5O4S and a molecular weight of 543.64 g/mol.

Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Upadacitinib Impurity 13 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 543.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Upadacitinib Impurity 13 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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