FormulaMI NumberCAS NumberC.I.Number

MI: Merck Index Number
CAS: Chemical Abstract Service Registry Number
C.I.: Chemical Index Number

Background (engl)

Geraniol is a terpene alcohol that forms the chief part of oil of rose and oil of palmarosa. It is an alcoholic extract obtained from geranium oil. It has a pleasant, sweet, rose-like odor. Most geraniol on the market today is synthetic made by pinene chemistry. Geraniol is a widely used fragrance in soaps, detergents, and cosmetics. It is also a component of natural flavors and essential oils used in flavor compounds. It is found in over 250 essential oils including cintronella and lemon grass. It accounts for over 90% of palmarosa oil and a large portion of geranium and rose oils.

Beschreibung (ger)

Geraniol, eine ölige farblose Flüssigkeit, ist in den meisten ätherischen Ölen enthalten, mit charakteristischem Rosenduft.




Flavoring agent
Insect attractant


Unusual Reactions



1. Calnan, C.D., E. Cronin, and R.J. Rycroft, Allergy to phenyl salicylate. Contact Dermatitis, 1981. 7(4): p. 208-11.
2. de Groot, A.C., et al., Patch tests with fragrance materials and preservatives. Contact Dermatitis, 1985. 12(2): p. 87-92.
3. Romaguera, C., F. Grimalt, and J. Vilaplana, Geraniol dermatitis. Contact Dermatitis, 1986. 14(3): p. 185-6.
4. Guerra, P., et al., Contact dermatitis to geraniol in a leg ulcer. Contact Dermatitis, 1987. 16(5): p. 298-9.
5. Cardullo, A.C., A.M. Ruszkowski, and V.A. DeLeo, Allergic contact dermatitis resulting from sensitivity to citrus peel, geraniol, and citral. Journal of the American Academy of Dermatology, 1989. 21(2 Pt 2): p. 395-7.
6. Roesyanto-Mahadi, I.D., et al., Sensitization to fragrance materials in Indonesian cosmetics. Contact Dermatitis, 1990. 22(4): p. 212-7.
7. Vilaplana, J., C. Romaguera, and F. Grimalt, Contact dermatitis from geraniol in Bulgarian rose oil. Contact Dermatitis, 1991. 24(4): p. 301.
8. de Groot, A.C., et al., Frequency of false-negative reactions to the fragrance mix. Contact Dermatitis, 1993. 28(3): p. 139-40.

This information originates from 

Trey Truett, MD