Cinnamaldehyde

Cinnamaldehyde (Cinnamic aldehyde, CAS NO. 104-55-2, Chemical formula C9H8O) is isolated from cinnamon essential oil, The natural product is trans-cinnamaldehyde.

As flavorant
The most obvious application for cinnamaldehyde is as flavoring in chewing gum, ice cream, candy, eliquid and beverages.  It is also used in some perfumes of natural, sweet, or fruity scents. Almond, apricot, butterscotch, and other aromas may partially employ the compound for their pleasant smells. Cinnamaldehyde can be used as a food adulterant; powdered beechnut husk aromatized with cinnamaldehyde can be marketed as powdered cinnamon.

As agrichemical
Cinnamaldehyde has been tested as a safe and effective insecticide against mosquito larvae.

As Cinnamaldehyde Oil, Cinnamic aldehyde used in feed as sensor feed additive.
The Cinnamaldehyde Oil (Cinnamic aldehyde) has functions:
a) Bacteriostatic sterilization, prevent bacteria, fungal diseases of animals.
b) Antiviral, enhance animal immunity.
c) Improve the feeding ability and improve the appetite of animals.
d) Insect repellent action