Fosaprepitant Impurity 13 CAS CATO-C4X-116813

Description

The occurrence of Fosaprepitant Impurity 13 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Fosaprepitant Impurity 13 (CAS CATO-C4X-116813) is a certified pharmaceutical impurity reference standard with the molecular formula C23H22F7N4O7PC7H17NO5 and a molecular weight of 825.62 g/mol.

Based on its molecular formula C23H22F7N4O7PC7H17NO5, Fosaprepitant Impurity 13 contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 825.62 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).

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), Fosaprepitant Impurity 13 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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