Sodium Thiophene-2-carboxylate - API Standards CAS 25112-68-9

Purity 97%+In StockPharmaceutical Standards
CAS No.25112-68-9
Molecular FormulaC5H3O2S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Sodium Thiophene-2-carboxylate - API Standards CAS 25112-68-9 chemical structure

Description

Sodium Thiophene-2-carboxylate - API Standards (CAS 25112-68-9), molecular formula C5H3O2SNa and molecular weight 150.13 g/mol, is a CATO reference standard with documented purity and traceability.

Sodium Thiophene-2-carboxylate - API Standards (C5H3O2SNa) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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 FormulaC5H3O2S Na
Molecular Weight150.13 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1964
Sulfur Atoms1

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