2-Oxothiazolidine-4-carboxylic acid CAS 19750-45-9

Purity 97%+In StockPharmaceutical Standards
CAS No.19750-45-9
Molecular FormulaC4H5NO3S
Molecular Weight147.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Oxothiazolidine-4-carboxylic acid CAS 19750-45-9 chemical structure

Description

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 2-Oxothiazolidine-4-carboxylic acid is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 147.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

2-Oxothiazolidine-4-carboxylic acid (CAS 19750-45-9), molecular formula C4H5NO3S and molecular weight 147.15 g/mol, is a CATO reference standard with documented purity and traceability.

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 FormulaC4H5NO3S
Molecular Weight147.15 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1962
Nitrogen Atoms1
Sulfur Atoms1

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