5-(Methylthio)-1,2,4-triazin-3(4H)-one CAS 57360-30-2

Purity 97%+In StockPharmaceutical Standards
CAS No.57360-30-2
Molecular FormulaC4H5N3OS
Molecular Weight143.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(Methylthio)-1,2,4-triazin-3(4H)-one CAS 57360-30-2 chemical structure

Description

Structurally, 5-(Methylthio)-1,2,4-triazin-3(4H)-one (C4H5N3OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 143.17 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

5-(Methylthio)-1,2,4-triazin-3(4H)-one (CAS 57360-30-2), molecular formula C4H5N3OS and molecular weight 143.17 g/mol, is a CATO reference standard with documented purity and traceability.

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 FormulaC4H5N3OS
Molecular Weight143.17 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)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1973
Nitrogen Atoms3
Sulfur Atoms1

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