4-(2,4-Difluorophenoxy)-2-(methylsulfanyl)thieno[3,2-d]pyrimidine CAS 339018-90-5

Description

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, 4-(2,4-Difluorophenoxy)-2-(methylsulfanyl)thieno[3,2-d]pyrimidine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 310.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

4-(2,4-Difluorophenoxy)-2-(methylsulfanyl)thieno[3,2-d]pyrimidine (CAS 339018-90-5), molecular formula C13H8F2N2OS2 and molecular weight 310.34 g/mol, is a CATO reference standard with documented purity and traceability.

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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