4-(2,2-Dimethylhydrazono)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide CAS 478043-35-5

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-(2,2-Dimethylhydrazono)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (CAS 478043-35-5), molecular formula C9H12N2O2S2 and molecular weight 244.33 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4-(2,2-Dimethylhydrazono)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (C9H12N2O2S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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).

As a certified reference material (CRM), 4-(2,2-Dimethylhydrazono)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com