A light, ethereal fruity-ester note with a sweet, slightly winey character reminiscent of green apple and pear skin. Has a soft buttery-fatty facet underneath typical of beta-ketoesters, fading fairly quickly.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 167.
Colorless liquid.
Insoluble in water, soluble in alcohol and oils.
The odor is somewhat fresher, not as fermented as that of the n-Butylester.
The taste of the fso-Butylester is somewhat less sweet.
Used in various berry and fruit flavor compositions, often as a modifier for the n-Butyl acetoacetate.
Preferred for fruity effects, and partly as a fixative for the more volatile esters used in hard candy flavoring.
Produced by Claisen condensation of iso-Butyl acetate with Ethyl acetate, using Sodium ethoxide catalyst.