Isopentyl acetate (CAS 123-92-2)

Isopentyl acetate, also known as isoamyl acetate, bears the CAS number 123-92-2 and is an organic compound that is best known for its distinctive banana-like odor. This ester is formed by the reaction between isopentanol (isoamyl alcohol) and acetic acid, a process commonly catalyzed by acidic conditions. Structurally, isopentyl acetate features an ester functional group, which accounts for its fruity fragrance and makes it a popular ingredient in flavorings and fragrance production. In research contexts, isopentyl acetate has been extensively utilized as a model substance to study esterification reactions, serving as a practical example for teaching organic synthesis and reaction mechanisms in educational settings. Besides its use in flavor and fragrance chemistry, isopentyl acetate has also been studied in entomological research. It is a major component of the pheromone system of the honeybee, acting as an alarm pheromone that signals danger to other bees. This aspect has been explored in various studies examining insect behavior, communication, and pheromone function. Additionally, researchers have investigated its potential as an eco-friendly solvent due to its desirable solvent properties and relatively low toxicity compared to more traditional industrial solvents. This makes isopentyl acetate a multifaceted chemical of interest not only in commercial applications but also in scientific research exploring natural product chemistry and sustainable materials.