4-Hydroxy-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide CAS 137004-58-1

Description

As a certified reference material (CRM), 4-Hydroxy-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-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.

4-Hydroxy-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (CAS 137004-58-1), molecular formula C7H8O3S2 and molecular weight 204.27 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Hydroxy-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (C7H8O3S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 204.27 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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