4-Ethyl-3-ethynylpyridine CAS 1824203-59-9

Description

Compared with other compounds in its class, the molecular weight of 131.17 g/mol gives 4-Ethyl-3-ethynylpyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4-Ethyl-3-ethynylpyridine (CAS 1824203-59-9), a certified reference material (molecular formula C9H9N, MW 131.17 g/mol) for analytical method development and quality control.

The molecular framework of 4-Ethyl-3-ethynylpyridine (C9H9N) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

CATO manufactures 4-Ethyl-3-ethynylpyridine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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