thiophene-3-sulfonic acid CAS 113282-83-0

Purity 97%+In StockPharmaceutical Standards
CAS No.113282-83-0
Molecular FormulaC4H8O3S2
Molecular Weight168.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

thiophene-3-sulfonic acid CAS 113282-83-0 chemical structure

Description

The occurrence of thiophene-3-sulfonic acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

thiophene-3-sulfonic acid (CAS 113282-83-0), molecular formula C4H8O3S2 and molecular weight 168.23 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, thiophene-3-sulfonic acid (C4H8O3S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 168.23 g/mol, it falls into the medium-molecular-weight range.

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

As a certified reference material (CRM), thiophene-3-sulfonic acid 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.

Physical & Chemical Properties

Molecular FormulaC4H8O3S2
Molecular Weight168.23 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1989
Sulfur Atoms2

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