Captopril Impurity 36 CAS 75172-11-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.75172-11-1
Molecular FormulaC4H8O2S
Molecular Weight120.17 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Captopril Impurity 36 CAS 75172-11-1 chemical structure

Description

As a certified reference material (CRM), Captopril Impurity 36 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.

As a process- or degradation-related impurity, Captopril Impurity 36 (CAS 75172-11-1, C4H8O2S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Captopril Impurity 36 is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 120.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

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.

Physical & Chemical Properties

Molecular FormulaC4H8O2S
Molecular Weight120.17 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1978
Sulfur Atoms1

Related Captopril Standards

Recommended Standards

Why CATO?