Isobutyl propionate, with the CAS number 540-42-1, is an ester formed from isobutanol and propionic acid. It is a colorless liquid with a fruity odor, making it useful in the flavor and fragrance industries. The compound is characterized by its relatively low boiling point and moderate solubility in water, while being more soluble in organic solvents. Isobutyl propionate has a moderate vapor pressure, which contributes to its volatility. It is generally considered to be non-toxic and has a low potential for environmental impact, although proper handling and safety measures should always be observed. The substance is often employed as a solvent in coatings and adhesives, as well as in the production of various chemical intermediates. Its pleasant aroma and low toxicity make it a popular choice in consumer products, including perfumes and food flavorings. As with many esters, isobutyl propionate can undergo hydrolysis in the presence of water, reverting to its parent alcohol and acid under certain conditions.

Isobutyl propionate has an odor similar to the corresponding ethyl
ester but more refined and fresher. It has a bitter flavor. Prepared 
by direct esterification or by reacting propionyl chloride with 
isobutyl alcohol in the presence of Mg dust in ether solution.

isobutyl propionate

540-42-1: Isobutyl propionate, with the CAS number 540-42-1, is an ester formed from isobutanol and propionic acid. It is a colorless liquid with a fruity odor, making it useful in the flavor and fragrance industries. The compound is characterized by its relatively low boiling point and moderate solubility in water, while being more soluble in organic solvents. Isobutyl propionate has a moderate vapor pressure, which contributes to its volatility. It is generally considered to be non-toxic and has a low potential for environmental impact, although proper handling and safety measures should always be observed. The substance is often employed as a solvent in coatings and adhesives, as well as in the production of various chemical intermediates. Its pleasant aroma and low toxicity make it a popular choice in consumer products, including perfumes and food flavorings. As with many esters, isobutyl propionate can undergo hydrolysis in the presence of water, reverting to its parent alcohol and acid under certain conditions.

CAS 540-42-1

isobutyl propionate

Isobutyl Propionate

Ref: 3B-P0506