3-(Methylthio)-1H-pyrazole CAS 774157-81-2

Purity 97%+In StockPharmaceutical Standards
CAS No.774157-81-2
Molecular FormulaC4H6N2S
Molecular Weight114.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(Methylthio)-1H-pyrazole CAS 774157-81-2 chemical structure

Description

The molecular framework of 3-(Methylthio)-1H-pyrazole (C4H6N2S) is characterized by a nitrile group, sulfur-containing functionality. 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).

CATO supplies 3-(Methylthio)-1H-pyrazole (CAS 774157-81-2), a certified reference material (molecular formula C4H6N2S, MW 114.17 g/mol) for analytical method development and quality control.

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 FormulaC4H6N2S
Molecular Weight114.17 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1986
Nitrogen Atoms2
Sulfur Atoms1

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