3-Ethyl-6-methyl-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidin-7(6H)-one CAS 440111-63-7

Description

The molecular framework of 3-Ethyl-6-methyl-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidin-7(6H)-one (C8H9N3OS2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

3-Ethyl-6-methyl-2-thioxo-2,3-dihydrothiazolo[4,5-d]pyrimidin-7(6H)-one (CAS 440111-63-7), molecular formula C8H9N3OS2 and molecular weight 227.31 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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