Sodium Valproate Impurity 42 CAS 4371-03-3

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.4371-03-3
Molecular FormulaC7H12O4
Molecular Weight160.17 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Sodium Valproate Impurity 42 CAS 4371-03-3 chemical structure

Description

Based on its molecular formula C7H12O4, Sodium Valproate Impurity 42 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 160.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

Sodium Valproate Impurity 42 (CAS 4371-03-3) is a certified pharmaceutical impurity reference standard with the molecular formula C7H12O4 and a molecular weight of 160.17 g/mol.

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 FormulaC7H12O4
Molecular Weight160.17 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)2.0
CAS Registry Year (est.)1958

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