Diethyl 2,5-dichlorothieno[3,2-b]thiophene-3,6-dicarboxylate CAS 1268375-33-2

Description

As a certified reference material (CRM), Diethyl 2,5-dichlorothieno[3,2-b]thiophene-3,6-dicarboxylate 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.

Diethyl 2,5-dichlorothieno[3,2-b]thiophene-3,6-dicarboxylate (CAS 1268375-33-2), molecular formula C12H10Cl2O4S2 and molecular weight 353.24 g/mol, is a CATO reference standard with documented purity and traceability.

Diethyl 2,5-dichlorothieno[3,2-b]thiophene-3,6-dicarboxylate (C12H10Cl2O4S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.

Physical & Chemical Properties

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