Glycerol Impurity 21 Sodium Salt CAS 68900-73-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.68900-73-2
Molecular FormulaC3H6O5P
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Glycerol Impurity 21 Sodium Salt CAS 68900-73-2 chemical structure

Description

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.

Glycerol Impurity 21 Sodium Salt (CAS 68900-73-2) is a certified pharmaceutical impurity reference standard with the molecular formula C3H6O5PNa and a molecular weight of 176.04 g/mol.

Glycerol Impurity 21 Sodium Salt (C3H6O5PNa) contains a phosphate ester group, a carboxylic acid 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.

As a certified reference material (CRM), Glycerol Impurity 21 Sodium Salt meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC3H6O5P Na
Molecular Weight176.04 g/mol
Purity>95%
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)1.0
CAS Registry Year (est.)1976

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