1-(1-Methyl-1H-pyrazol-3-yl)thiourea CAS 758715-92-3

Purity 97%+In StockPharmaceutical Standards
CAS No.758715-92-3
Molecular FormulaC5H8N4S
Molecular Weight156.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(1-Methyl-1H-pyrazol-3-yl)thiourea CAS 758715-92-3 chemical structure

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.

CATO supplies 1-(1-Methyl-1H-pyrazol-3-yl)thiourea (CAS 758715-92-3), a certified reference material (molecular formula C5H8N4S, MW 156.21 g/mol) for analytical method development and quality control.

1-(1-Methyl-1H-pyrazol-3-yl)thiourea (C5H8N4S) contains a nitrile group, sulfur-containing functionality. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

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 FormulaC5H8N4S
Molecular Weight156.21 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.)1986
Nitrogen Atoms4
Sulfur Atoms1

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