4-(p-Tolylthio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide CAS 339019-16-8

Description

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.

4-(p-Tolylthio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (CAS 339019-16-8), molecular formula C14H14O2S3 and molecular weight 310.45 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 4-(p-Tolylthio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 310.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

CATO manufactures 4-(p-Tolylthio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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