6,7-difluoro-3,4-dihydro-2H-1$l^{6}-benzothiopyran-1,1,4-trione CAS 1094476-70-6

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.

6,7-difluoro-3,4-dihydro-2H-1$l^{6}-benzothiopyran-1,1,4-trione (CAS 1094476-70-6) is a high-purity analytical reference standard with the molecular formula C9H6F2O3S and a molecular weight of 232.20 g/mol.

The molecular framework of 6,7-difluoro-3,4-dihydro-2H-1$l^{6}-benzothiopyran-1,1,4-trione (C9H6F2O3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional 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).

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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