Pantoprazole Impurity 66 Sodium Salt CAS 140-90-9

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.140-90-9
Molecular FormulaC3H5OS2
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Pantoprazole Impurity 66 Sodium Salt CAS 140-90-9 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.

Pantoprazole Impurity 66 Sodium Salt (CAS 140-90-9) is a certified pharmaceutical impurity reference standard with the molecular formula C3H5OS2Na and a molecular weight of 144.18 g/mol.

Structurally, Pantoprazole Impurity 66 Sodium Salt (C3H5OS2Na) contains sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.5, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 144.18 g/mol, it falls into the low-molecular-weight range.

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 FormulaC3H5OS2 Na
Molecular Weight144.18 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)1.5
CAS Registry Year (est.)1957
Sulfur Atoms2

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