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Natural 2-butyl-2-octenal (2-hexylidenehexanal; FEMA# 4616, CAS# 13019-16-4), which occurs naturally in green tea, can be used in a variety of flavor applications. From Alfrebro (Cargill Flavor Systems, now owned by Kerry), it offers a fruity, pineapple, green, aldehydic, sweet, ripe and juicy flavor profile. It can be used in pineapple flavors, as well as in pear, apple, plum and many tropical profiles such as passion fruit, guava and more. It would lend an interesting note to fruit punch and may also be useful as a top note in cranberry, pomegranate (grenadine) or plum applications to provide a tart, skinlike note.