2-(5-Methyl-1H-pyrazol-3-yl)pyridine CAS 19959-77-4

Purity 97%+In StockPharmaceutical Standards
CAS No.19959-77-4
Molecular FormulaC9H9N3
Molecular Weight159.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(5-Methyl-1H-pyrazol-3-yl)pyridine CAS 19959-77-4 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.

2-(5-Methyl-1H-pyrazol-3-yl)pyridine (CAS 19959-77-4) is a high-purity analytical reference standard with the molecular formula C9H9N3 and a molecular weight of 159.19 g/mol.

2-(5-Methyl-1H-pyrazol-3-yl)pyridine (C9H9N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC9H9N3
Molecular Weight159.19 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms3

Recommended Standards

Why CATO?