Tiopronin Impurity 4 CAS 79-42-5

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.79-42-5
Molecular FormulaC3H6O2S
Molecular Weight106.14 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tiopronin Impurity 4 CAS 79-42-5 chemical structure

Description

As a certified reference material (CRM), Tiopronin Impurity 4 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.

Tiopronin Impurity 4 (CAS 79-42-5) is a certified pharmaceutical impurity reference standard with the molecular formula C3H6O2S and a molecular weight of 106.14 g/mol.

The molecular framework of Tiopronin Impurity 4 (C3H6O2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

Physical & Chemical Properties

Molecular FormulaC3H6O2S
Molecular Weight106.14 g/mol
Purity>95%
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.)1957
Sulfur Atoms1

Related Tiopronin Standards

Recommended Standards

Why CATO?