Vilanterol Impurity 19 2,2,2-triphenylacetate CAS CATO-C4X-193519

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Vilanterol Impurity 19 2,2,2-triphenylacetate.

CATO supplies Vilanterol Impurity 19 2,2,2-triphenylacetate (CAS CATO-C4X-193519), a pharmacopoeial impurity reference standard (molecular formula C24H31Cl2NO5C20H16O2, MW 772.76 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Vilanterol Impurity 19 2,2,2-triphenylacetate (C24H31Cl2NO5C20H16O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 21.0, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 772.76 g/mol, it falls into the high-molecular-weight range. 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.

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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