Ethosuximide impurity 5 CAS CATO-C4X-26255

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-26255
Molecular FormulaC7H13NO3
Molecular Weight159.18 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ethosuximide impurity 5 CAS CATO-C4X-26255 chemical structure

Description

CATO manufactures Ethosuximide impurity 5 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.

CATO supplies Ethosuximide impurity 5 (CAS CATO-C4X-26255), a pharmacopoeial impurity reference standard (molecular formula C7H13NO3, MW 159.18 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Ethosuximide impurity 5 (C7H13NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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.

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.

Physical & Chemical Properties

Molecular FormulaC7H13NO3
Molecular Weight159.18 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
Nitrogen Atoms1

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