Erdosteine impurity 14 CAS CATO-C4X-196314

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-196314
Molecular FormulaC4H5ClO3S
Molecular Weight168.60 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Erdosteine impurity 14 CAS CATO-C4X-196314 chemical structure

Description

Erdosteine impurity 14 (CAS CATO-C4X-196314) is a certified pharmaceutical impurity reference standard with the molecular formula C4H5ClO3S and a molecular weight of 168.60 g/mol.

Structurally, Erdosteine impurity 14 (C4H5ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 168.60 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), Erdosteine impurity 14 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 FormulaC4H5ClO3S
Molecular Weight168.60 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
Halogen ContentCl-containing
Sulfur Atoms1

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