Ezetimibe Impurity 95 CAS CATO-C4X-109895

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-109895
Molecular FormulaC18H20FNO3
Molecular Weight317.35 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ezetimibe Impurity 95 CAS CATO-C4X-109895 chemical structure

Description

CATO supplies Ezetimibe Impurity 95 (CAS CATO-C4X-109895), a pharmacopoeial impurity reference standard (molecular formula C18H20FNO3, MW 317.35 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Ezetimibe Impurity 95 (C18H20FNO3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

CATO manufactures Ezetimibe Impurity 95 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 FormulaC18H20FNO3
Molecular Weight317.35 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF-containing
Nitrogen Atoms1

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