5-Oxothiolane-3-carboxylic acid CAS 28525-50-0

Purity 97%+In StockPharmaceutical Standards
CAS No.28525-50-0
Molecular FormulaC5H6O3S
Molecular Weight146.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Oxothiolane-3-carboxylic acid CAS 28525-50-0 chemical structure

Description

CATO supplies 5-Oxothiolane-3-carboxylic acid (CAS 28525-50-0), a certified reference material (molecular formula C5H6O3S, MW 146.16 g/mol) for analytical method development and quality control.

The molecular framework of 5-Oxothiolane-3-carboxylic acid (C5H6O3S) 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC5H6O3S
Molecular Weight146.16 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1965
Sulfur Atoms1

Related Oxothiolane Standards

Recommended Standards

Why CATO?