5-Amino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one CAS 155-14-6

Description

Compared with other compounds in its class, the molecular weight of 143.17 g/mol gives 5-Amino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Amino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 155-14-6) is a high-purity analytical reference standard with the molecular formula C4H5N3OS and a molecular weight of 143.17 g/mol.

The molecular framework of 5-Amino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (C4H5N3OS) 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com