Abemaciclib Impurity 159 CAS CATO-C4X-2937159

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-2937159
Molecular FormulaC27H34N8
Molecular Weight470.61 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Abemaciclib Impurity 159 CAS CATO-C4X-2937159 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Abemaciclib Impurity 159.

CATO supplies Abemaciclib Impurity 159 (CAS CATO-C4X-2937159), a pharmacopoeial impurity reference standard (molecular formula C27H34N8, MW 470.61 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Abemaciclib Impurity 159 (C27H34N8) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 470.61 g/mol, it falls into the moderately-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).

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

Molecular FormulaC27H34N8
Molecular Weight470.61 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms8

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