Methyl cis-5-eicosenoate CAS 20839-34-3

Purity 97%+In StockPharmaceutical Standards
CAS No.20839-34-3
Molecular FormulaC21H40O2
Molecular Weight324.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl cis-5-eicosenoate CAS 20839-34-3 chemical structure

Description

Methyl cis-5-eicosenoate (CAS 20839-34-3) is a high-purity analytical reference standard with the molecular formula C21H40O2 and a molecular weight of 324.54 g/mol.

Based on its molecular formula C21H40O2, Methyl cis-5-eicosenoate contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 324.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 FormulaC21H40O2
Molecular Weight324.54 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)2.0
CAS Registry Year (est.)1962

Recommended Standards

Why CATO?