4-((4-Bromophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide CAS 339019-23-7

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-((4-Bromophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide.

4-((4-Bromophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (CAS 339019-23-7), molecular formula C13H11BrO2S3 and molecular weight 375.32 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4-((4-Bromophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (C13H11BrO2S3) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

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.

Physical & Chemical Properties

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