[1,3]Oxathiolo[5,4-d]pyrimidine CAS 28648-33-1

Description

CATO manufactures [1,3]Oxathiolo[5,4-d]pyrimidine 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.

[1,3]Oxathiolo[5,4-d]pyrimidine (CAS 28648-33-1), molecular formula C5H4N2OS and molecular weight 140.16 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of [1,3]Oxathiolo[5,4-d]pyrimidine (C5H4N2OS) 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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