N-Nitroso Linagliptin impurity 146 CAS CATO-C4X-1101146

Description

The occurrence of N-Nitroso Linagliptin impurity 146 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies N-Nitroso Linagliptin impurity 146 (CAS CATO-C4X-1101146), a pharmacopoeial impurity reference standard (molecular formula C25H27N9O3, MW 501.54 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C25H27N9O3, N-Nitroso Linagliptin impurity 146 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 501.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), N-Nitroso Linagliptin impurity 146 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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