6-Thioxo-7,9-dihydro-1H-purin-8(6H)-one CAS 20917-46-8

Description

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.

6-Thioxo-7,9-dihydro-1H-purin-8(6H)-one (CAS 20917-46-8) is a high-purity analytical reference standard with the molecular formula C5H4N4OS and a molecular weight of 168.18 g/mol.

The molecular framework of 6-Thioxo-7,9-dihydro-1H-purin-8(6H)-one (C5H4N4OS) is characterized by 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 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).

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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