EczemaPsoriasisSkin Allergens

Cinnamaldehyde Skin Allergen of the Day

Cinnamaldehyde is an organic compound with the formula ( C 9 H 8 O ) C6H5CH=CHCHO. Occurring naturally as predominantly the trans (E) isomer, it gives cinnamon its flavor and odor.  (CAS Number 1437-10-9)

Cinnameldahyde may cause allergic contact stomatitis in sensitised individuals, however allergy to the compound is believed to be uncommon.  It is on the contact allergens in humans EU List of fragrance ingredients.

Skeletal formula of cinnamaldehyde

Other names

  • Cihinnamaldehyde
  • Cinnamal
  • Cinnamic aldehyde
  • trans-Cinnamaldehyde
  • Preferred IUPAC name