Peptide Impurity 82 CAS 10491-78-8

Description

Compared with other compounds in its class, the molecular weight of 213.23 g/mol gives Peptide Impurity 82 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Peptide Impurity 82 (CAS 10491-78-8), a pharmacopoeial impurity reference standard (molecular formula C9H15N3O3, MW 213.23 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Peptide Impurity 82 (C9H15N3O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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