1-Amino-2-thioxotetrahydropyrimidin-4(1H)-one CAS 344324-13-6

Purity 97%+In StockPharmaceutical Standards
CAS No.344324-13-6
Molecular FormulaC4H7N3OS
Molecular Weight145.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Amino-2-thioxotetrahydropyrimidin-4(1H)-one CAS 344324-13-6 chemical structure

Description

1-Amino-2-thioxotetrahydropyrimidin-4(1H)-one (CAS 344324-13-6), molecular formula C4H7N3OS and molecular weight 145.18 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 1-Amino-2-thioxotetrahydropyrimidin-4(1H)-one (C4H7N3OS) 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.

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

Molecular FormulaC4H7N3OS
Molecular Weight145.18 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2025
Nitrogen Atoms3
Sulfur Atoms1

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