N-(Pyridin-3-yl)pyridine-4-carboxamide CAS 39642-69-8

Purity 97%+In StockPharmaceutical Standards
CAS No.39642-69-8
Molecular FormulaC11H9N3O
Molecular Weight199.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-(Pyridin-3-yl)pyridine-4-carboxamide CAS 39642-69-8 chemical structure

Description

N-(Pyridin-3-yl)pyridine-4-carboxamide (CAS 39642-69-8) is a high-purity analytical reference standard with the molecular formula C11H9N3O and a molecular weight of 199.21 g/mol.

The molecular framework of N-(Pyridin-3-yl)pyridine-4-carboxamide (C11H9N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC11H9N3O
Molecular Weight199.21 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968
Nitrogen Atoms3

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