Empagliflozin Impurity 157 CAS 167979-56-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.167979-56-8
Molecular FormulaC5H8O3
Molecular Weight116.12 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Empagliflozin Impurity 157 CAS 167979-56-8 chemical structure

Description

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.

As a process- or degradation-related impurity, Empagliflozin Impurity 157 (CAS 167979-56-8, C5H8O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Based on its molecular formula C5H8O3, Empagliflozin Impurity 157 contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 116.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

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 FormulaC5H8O3
Molecular Weight116.12 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)2004

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