Thioctic acid Impurity 70 CAS CATO-C4X-152670

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-152670
Molecular FormulaC8H16O2S2
Molecular Weight208.34 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Thioctic acid Impurity 70 CAS CATO-C4X-152670 chemical structure

Description

The occurrence of Thioctic acid Impurity 70 is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Thioctic acid Impurity 70 (CAS CATO-C4X-152670) is a certified pharmaceutical impurity reference standard with the molecular formula C8H16O2S2 and a molecular weight of 208.34 g/mol.

Structurally, Thioctic acid Impurity 70 (C8H16O2S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 208.34 g/mol, it falls into the medium-molecular-weight range.

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.

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 FormulaC8H16O2S2
Molecular Weight208.34 g/mol
Purity>95%
StorageStore at room temperature
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
Sulfur Atoms2

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