3-Methyl-1,5-diphenyl-1H-pyrazole CAS 3729-90-6

Purity 97%+In StockPharmaceutical Standards
CAS No.3729-90-6
Molecular FormulaC16H14N2
Molecular Weight234.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Methyl-1,5-diphenyl-1H-pyrazole CAS 3729-90-6 chemical structure

Description

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

3-Methyl-1,5-diphenyl-1H-pyrazole (CAS 3729-90-6) is a high-purity analytical reference standard with the molecular formula C16H14N2 and a molecular weight of 234.30 g/mol.

Based on its molecular formula C16H14N2, 3-Methyl-1,5-diphenyl-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 234.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 FormulaC16H14N2
Molecular Weight234.30 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.)1958
Nitrogen Atoms2

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