4-((3-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide CAS 339019-27-1

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

4-((3-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (CAS 339019-27-1), molecular formula C13H11ClO2S3 and molecular weight 330.87 g/mol, is a CATO reference standard with documented purity and traceability.

4-((3-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (C13H11ClO2S3) 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, 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.

Physical & Chemical Properties

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