2,5-Dihydrothiophene-3,4-dicarboxylic Acid CAS 20688-07-7

Purity 97%+In StockPharmaceutical Standards
CAS No.20688-07-7
Molecular FormulaC6H6O4S
Molecular Weight174.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5-Dihydrothiophene-3,4-dicarboxylic Acid CAS 20688-07-7 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,5-Dihydrothiophene-3,4-dicarboxylic Acid.

CATO supplies 2,5-Dihydrothiophene-3,4-dicarboxylic Acid (CAS 20688-07-7), a certified reference material (molecular formula C6H6O4S, MW 174.17 g/mol) for analytical method development and quality control.

2,5-Dihydrothiophene-3,4-dicarboxylic Acid (C6H6O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

CATO manufactures 2,5-Dihydrothiophene-3,4-dicarboxylic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC6H6O4S
Molecular Weight174.17 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Sulfur Atoms1

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