6,8-Dimercapto-7H-purin-2-ol CAS 91113-94-9

Description

6,8-Dimercapto-7H-purin-2-ol (CAS 91113-94-9), molecular formula C5H4N4OS2 and molecular weight 200.24 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 6,8-Dimercapto-7H-purin-2-ol (C5H4N4OS2) 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.

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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