D-Usnic acid home ICD10: L23.9

D-Usnic acid

Formula CAS
C18H16O7 7562-61-0



Background
D-Usnic acid is an antibacterial substance found in many lichens.

Synonyms
2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-1,3(2H,9b H)-dibenzofurandione
D-Usnic acid (+)-
Usnic acid
Usninic acid
Usnein
Usniacin
Usnic acid

Uses
Anti-acne formulations
After-shave lotions
Cosmetics
Deodorants
Oak moss absolute used as a fragrance
Topical antibiotics

Cross-Reactions
Oak moss

Unusual Reactions
Airborne Photoallergy

Back to list of contact allergens


Referenties
1. Thune, P.O. and Y.J. Solberg, Photosensitivity and allergy to aromatic lichen acids, Compositae oleoresins and other plant substances. Contact Dermatitis, 1980. 6(2): p. 81-7.
2. Thune, P., et al., Perfume allergy due to oak moss and other lichens. Contact Dermatitis, 1982. 8(6): p. 396-400.
3. Sandberg, M. and P. Thune, The sensitizing capacity of atranorin. Contact Dermatitis, 1984. 11(3): p. 168-73.
4. Benezra, C., et al., Enantiospecificity in allergic contact dermatitis. A review and new results in Frullania-sensitive patients. Contact Dermatitis, 1985. 13(2): p. 110-4.
5. Goncalo, S., Contact sensitivity to lichens and compositae in Frullania dermatitis. Contact Dermatitis, 1987. 16(2): p. 84-6.
6. Goncalo, S., F. Cabral, and M. Goncalo, Contact sensitivity to oak moss. Contact Dermatitis, 1988. 19(5): p. 355-7.
7. Hausen, B.M., L. Emde, and V. Marks, An investigation of the allergenic constituents of Cladonia stellaris (Opiz) Pous & Vezda ('silver moss', 'reindeer moss' or 'reindeer lichen'). Contact Dermatitis, 1993. 28(2): p. 70-6.


Author(s):
Allergology: background information on allergens.

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