5-Ethyl-3-isobutyl-2-methylpyrazine CAS 117783-43-4

Description

Compared with other compounds in its class, the molecular weight of 178.27 g/mol gives 5-Ethyl-3-isobutyl-2-methylpyrazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Ethyl-3-isobutyl-2-methylpyrazine (CAS 117783-43-4) is a high-purity analytical reference standard with the molecular formula C11H18N2 and a molecular weight of 178.27 g/mol.

The molecular framework of 5-Ethyl-3-isobutyl-2-methylpyrazine (C11H18N2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. 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.

CATO manufactures 5-Ethyl-3-isobutyl-2-methylpyrazine 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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