2,5-Dichlorothiophene-3,4-dicarbaldehyde CAS 55581-76-5

Purity 97%+In StockPharmaceutical Standards
CAS No.55581-76-5
Molecular FormulaC6H2Cl2O2S
Molecular Weight209.05 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5-Dichlorothiophene-3,4-dicarbaldehyde CAS 55581-76-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 209.05 g/mol gives 2,5-Dichlorothiophene-3,4-dicarbaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 2,5-Dichlorothiophene-3,4-dicarbaldehyde (CAS 55581-76-5), a certified reference material (molecular formula C6H2Cl2O2S, MW 209.05 g/mol) for analytical method development and quality control.

2,5-Dichlorothiophene-3,4-dicarbaldehyde (C6H2Cl2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), 2,5-Dichlorothiophene-3,4-dicarbaldehyde 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 FormulaC6H2Cl2O2S
Molecular Weight209.05 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Halogen ContentCl-containing
Sulfur Atoms1

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