Isoamyl isovalerate

Description and usage notes:

Fresh, fruity top-note material. Useful for adding realism to the top-notes of chocolate, apple, goosberry and other fruits, Champagne and cider accords.

Arctander gives an interesting description of this material “Peculiar fruity odor reminiscent of ripe apples, or more like the overwhelmingly choking odor of apples stored in a warehouse, almost a ‘fermented’ apple odor.”