Tacrolimus Impurity 17 CAS CATO-C4X-130017

Description

Compared with other compounds in its class, the molecular weight of 804.02 g/mol gives Tacrolimus Impurity 17 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Tacrolimus Impurity 17 (CAS CATO-C4X-130017), a pharmacopoeial impurity reference standard (molecular formula C44H69NO12, MW 804.02 g/mol) used for the identification and quantification of trace impurities in APIs.

Tacrolimus Impurity 17 (C44H69NO12) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com