Allyl caproate Description and usage notes: One of the key character components in the smell of fresh pineapple, this material is also useful to brighten floral and mossy fragrances and add realism to peach accords. Please handle with care – this material is toxic in pure form – see SDS for details. According to Arctander  it has a “Slightly pungent, fatty-fruity odor reminiscent of Pineapple, Rum, Arak, remotely of Peach. Less ethereal, but more natural Pineapple-like than Methyl caproate.”  He goes on to explain that although originally a flavour material allyl hexanoate has become widely used in fragrances “as part of a fruity topnote complex in fragrance types such as Miss Dior, Intimate, Cabochard, Ma Griffe, etc. In combination with green and mossy notes, it may form a characteristic part of such fragrance types. It also tends to round off the predominant Aldehyde-notes in combination with Styrallyl esters."" Jean Claude Elena, in his book Diary of a Nose, suggests that in combination with ethyl maltol this material can produce an effective illusion of the smell of fresh pineapple.  He says “This exotic fruit needs few elements to express itself.  A simple molecule called allyl hexanoate smells of pineapple, but also evokes some kinds of apple; there are sometimes tenuous differences between two smells.  To get the pineapple smell just right it is important to add ethyl maltol.” Interestingly he uses both of the commonly used names for this material in different parts of the book. He also suggest it for the Red Apple in his “colorful basket of apples” : Green Apples fructone benzyl acetate cis-3-hexenol Yellow Apples fructone hexyl acetate benzyl acetate Red Apples fructone allyl caproate hexyl acetate