6-sulfanylidene-1H,2H,3H,6H,7H-pyrazolo[3,4-d]pyrimidin-3-one CAS 161715-40-8

Description

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.

6-sulfanylidene-1H,2H,3H,6H,7H-pyrazolo[3,4-d]pyrimidin-3-one (CAS 161715-40-8), molecular formula C5H4N4OS and molecular weight 168.18 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 6-sulfanylidene-1H,2H,3H,6H,7H-pyrazolo[3,4-d]pyrimidin-3-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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures 6-sulfanylidene-1H,2H,3H,6H,7H-pyrazolo[3,4-d]pyrimidin-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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