A green, fruity ester with a bright apple-pear character and a slightly sharp, unripe green edge. Reminiscent of freshly cut apple skin with a light, sweet-sour lift.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 880.
Colorless mobile liquid.
Very slightly soluble in water, soluble in alcohol and oils.
Green-musty, earthy-sweet and fruity odor of moderate to poor tenacity.
This ester is used in flavor compositions for the type of fruit flavor demanding a rather sharp and green fruity topnote, such as Pineapple, Strawberry, etc. and in various fruit complexes.
It is quite powerful, and the concentration used is normally equivalent to only 0.05 to 0.1 ppm in the finished product.
Produced by direct esterification. The acid is obtained from reacting Butyraldehyde with Malonic acid. A certain amount of 3-Hexenoic acid is formed, but it can be rearranged to the 2-Hexenoic acid.