2-methyl­eicosanoic acid CAS 22890-19-3

Purity 97%+In StockPharmaceutical Standards
CAS No.22890-19-3
Molecular FormulaC21H42O2
Molecular Weight326.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-methyl­eicosanoic acid CAS 22890-19-3 chemical structure

Description

CATO supplies 2-methyl­eicosanoic acid (CAS 22890-19-3), a certified reference material (molecular formula C21H42O2, MW 326.56 g/mol) for analytical method development and quality control.

The molecular framework of 2-methyl­eicosanoic acid (C21H42O2) is characterized by a carboxylic acid 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.

CATO manufactures 2-methyl­eicosanoic acid 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

Molecular FormulaC21H42O2
Molecular Weight326.56 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1963

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