4-Methyl-3,5-di-p-tolyl-1H-pyrazole CAS 724742-87-4

Purity 97%+In StockPharmaceutical Standards
CAS No.724742-87-4
Molecular FormulaC18H18N2
Molecular Weight262.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methyl-3,5-di-p-tolyl-1H-pyrazole CAS 724742-87-4 chemical structure

Description

Based on its molecular formula C18H18N2, 4-Methyl-3,5-di-p-tolyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 262.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

4-Methyl-3,5-di-p-tolyl-1H-pyrazole (CAS 724742-87-4) is a high-purity analytical reference standard with the molecular formula C18H18N2 and a molecular weight of 262.35 g/mol.

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

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 FormulaC18H18N2
Molecular Weight262.35 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms2

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