Hexyl cinnamaldehyde

Hexyl cinnamaldehyde, or hexyl cinnamal, is a common additive in perfume and cosmetic industry as aroma substance. It is found naturally in the essential oil of chamomile.

Properties
It is a pale yellow to yellow clear liquid to solid, which is insoluble in water but soluble in oils.

Toxicity
Hexyl cinnamaldehyde is a class B allergen according to DIMDI classification. It is also an irritant in concentrations higher than recommended.