8-fluoro-4H-thieno[3,2-c]thiochromene-2-carboxylic acid CAS 790263-74-0

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 8-fluoro-4H-thieno[3,2-c]thiochromene-2-carboxylic acid.

8-fluoro-4H-thieno[3,2-c]thiochromene-2-carboxylic acid (CAS 790263-74-0), molecular formula C12H7FO2S2 and molecular weight 266.31 g/mol, is a CATO reference standard with documented purity and traceability.

8-fluoro-4H-thieno[3,2-c]thiochromene-2-carboxylic acid (C12H7FO2S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. 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. 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), 8-fluoro-4H-thieno[3,2-c]thiochromene-2-carboxylic 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

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