3,6-Dimethyl-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxylic acid CAS 885461-44-9

Description

Compared with other compounds in its class, the molecular weight of 275.25 g/mol gives 3,6-Dimethyl-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,6-Dimethyl-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxylic acid (CAS 885461-44-9), molecular formula C11H8F3NO2S and molecular weight 275.25 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3,6-Dimethyl-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxylic acid (C11H8F3NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 275.25 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

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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