2-Oxo-2,5,7,8-tetrahydro-1h-thiopyrano[4,3-b]pyridine-3-carboxylic acid 6,6-dioxide CAS 1249349-29-8

Description

As a certified reference material (CRM), 2-Oxo-2,5,7,8-tetrahydro-1h-thiopyrano[4,3-b]pyridine-3-carboxylic acid 6,6-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.

2-Oxo-2,5,7,8-tetrahydro-1h-thiopyrano[4,3-b]pyridine-3-carboxylic acid 6,6-dioxide (CAS 1249349-29-8), molecular formula C9H9NO5S and molecular weight 243.24 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-Oxo-2,5,7,8-tetrahydro-1h-thiopyrano[4,3-b]pyridine-3-carboxylic acid 6,6-dioxide (C9H9NO5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 243.24 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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