5-Methyl-2-(p-tolyl)pyridine CAS 85237-71-4

Purity 97%+In StockPharmaceutical Standards
CAS No.85237-71-4
Molecular FormulaC13H13N
Molecular Weight183.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methyl-2-(p-tolyl)pyridine CAS 85237-71-4 chemical structure

Description

5-Methyl-2-(p-tolyl)pyridine (CAS 85237-71-4) is a high-purity analytical reference standard with the molecular formula C13H13N and a molecular weight of 183.25 g/mol.

5-Methyl-2-(p-tolyl)pyridine (C13H13N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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).

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.

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 FormulaC13H13N
Molecular Weight183.25 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1981
Nitrogen Atoms1

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