Acetylcysteine Impurity 41 CAS 13100-82-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.13100-82-8
Molecular FormulaC3H7NO5S
Molecular Weight169.16 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Acetylcysteine Impurity 41 CAS 13100-82-8 chemical structure

Description

As a process- or degradation-related impurity, Acetylcysteine Impurity 41 (CAS 13100-82-8, C3H7NO5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Acetylcysteine Impurity 41 (C3H7NO5S) contains an amide group, a sulfone group, a carboxylic acid group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), Acetylcysteine Impurity 41 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 FormulaC3H7NO5S
Molecular Weight169.16 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1960
Nitrogen Atoms1
Sulfur Atoms1

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