2-Phenyl-5,7-dihydrothieno[3,4-d]pyrimidin-4-ol CAS 5719-24-4

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.

2-Phenyl-5,7-dihydrothieno[3,4-d]pyrimidin-4-ol (CAS 5719-24-4), molecular formula C18H17N3OS2 and molecular weight 355.48 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-Phenyl-5,7-dihydrothieno[3,4-d]pyrimidin-4-ol (C18H17N3OS2) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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 2-Phenyl-5,7-dihydrothieno[3,4-d]pyrimidin-4-ol 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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