1-Methyl-3-phenyl-5-(p-tolylthio)-1H-pyrazole-4-carbonitrile CAS 321998-34-9

Purity 97%+In StockPharmaceutical Standards
CAS No.321998-34-9
Molecular FormulaC18H15N3S
Molecular Weight305.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Methyl-3-phenyl-5-(p-tolylthio)-1H-pyrazole-4-carbonitrile CAS 321998-34-9 chemical structure

Description

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.

CATO supplies 1-Methyl-3-phenyl-5-(p-tolylthio)-1H-pyrazole-4-carbonitrile (CAS 321998-34-9), a certified reference material (molecular formula C18H15N3S, MW 305.40 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 1-Methyl-3-phenyl-5-(p-tolylthio)-1H-pyrazole-4-carbonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC18H15N3S
Molecular Weight305.40 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms3
Sulfur Atoms1

Recommended Standards

Why CATO?