Sodium Valproate EP Impurity K CAS 5343-52-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.5343-52-2
Molecular FormulaC8H16O2
Molecular Weight144.21 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Sodium Valproate EP Impurity K CAS 5343-52-2 chemical structure

Description

Sodium Valproate EP Impurity K (CAS 5343-52-2) is a certified pharmaceutical impurity reference standard with the molecular formula C8H16O2 and a molecular weight of 144.21 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Sodium Valproate EP Impurity K is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 144.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

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.

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 FormulaC8H16O2
Molecular Weight144.21 g/mol
Purity>95%
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1958

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