Thioctic acid Impurity 94 CAS 50628-93-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.50628-93-8
Molecular FormulaC9H18O2S2
Molecular Weight222.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Thioctic acid Impurity 94 CAS 50628-93-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 222.37 g/mol gives Thioctic acid Impurity 94 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Thioctic acid Impurity 94 (CAS 50628-93-8), a pharmacopoeial impurity reference standard (molecular formula C9H18O2S2, MW 222.37 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C9H18O2S2, Thioctic acid Impurity 94 contains a sulfone group, 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 222.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

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.

As a certified reference material (CRM), Thioctic acid Impurity 94 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 FormulaC9H18O2S2
Molecular Weight222.37 g/mol
Purity97%+
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
CAS Registry Year (est.)1971
Sulfur Atoms2

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