Isoamyl Acetate - (CH3)2CHCH2CH2OCOCH3, a colorless liquid with fruity flavor. Isoamyl acetate is a component of fruit essences. Very often it is referred to as “pear essence” among food industry experts. This name is due to the pear aroma of the substance. Isoamyl Acetate has been widely used in the making of caramel, liqueurs, fruit drinks and various confectionery goods.