Dexpanthenol Impurity 20 CAS 124402-19-3

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.124402-19-3
Molecular FormulaC9H16O3
Molecular Weight172.22 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dexpanthenol Impurity 20 CAS 124402-19-3 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, Dexpanthenol Impurity 20 (CAS 124402-19-3, C9H16O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Dexpanthenol Impurity 20 (C9H16O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.

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 FormulaC9H16O3
Molecular Weight172.22 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1992

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