Synonyms:

D-Usnic acid; D-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-1,3(2H,9bH)-dibenzofurandione; (+)-Usniacin; (+)-Usnein. Antibacterial substance found in many lichens.

Uses:

Occurs in oak moss absolute used as fragrance. Preservative in deodorants, antiacne formulations, and as antibiotic for topical application. Cross: oak moss. ABCD.