Baloxavir Marboxil Impurity 229 CAS CATO-C4X-2108229

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-2108229
Molecular FormulaC11H20O3
Molecular Weight200.27 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Baloxavir Marboxil Impurity 229 CAS CATO-C4X-2108229 chemical structure

Description

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 supplies Baloxavir Marboxil Impurity 229 (CAS CATO-C4X-2108229), a pharmacopoeial impurity reference standard (molecular formula C11H20O3, MW 200.27 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Baloxavir Marboxil Impurity 229 (C11H20O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC11H20O3
Molecular Weight200.27 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0

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