Abemaciclib Impurity 4 CAS CATO-C4X-29374

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-29374
Molecular FormulaC15H13ClF2N4
Molecular Weight322.74 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Abemaciclib Impurity 4 CAS CATO-C4X-29374 chemical structure

Description

The occurrence of Abemaciclib Impurity 4 is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Abemaciclib Impurity 4 (CAS CATO-C4X-29374) is a certified pharmaceutical impurity reference standard with the molecular formula C15H13ClF2N4 and a molecular weight of 322.74 g/mol.

The molecular framework of Abemaciclib Impurity 4 (C15H13ClF2N4) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.

CATO manufactures Abemaciclib Impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC15H13ClF2N4
Molecular Weight322.74 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF/Cl-containing
Nitrogen Atoms4

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