Usnic Acid Properties, Molecular Formula, Applications - WorldOfChemicals

Usnic Acid Properties

Usnic Acid

Molecule 3D Structure Image
Molecule Structure Image



Usnic acid is a naturally occurring dibenzofuran derivative found in several lichen species. It was first isolated by German scientist W. Knop in 1844 and first synthesized between 1933-1937 by Curd and Robertson. Lichen extracts containing usnic acid have been utilized in medicine, perfumery, cosmetics, and ecology.

Chemical Properties

Appearance Yellow Crystalline Powder
Boiling Point 594.8 °C
CAS Number 125-46-2
ChEBI 38319
Density 1.49 g/cm3
EINECS Number 231-456-0
IUPAC Name 2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzo[b,d]furan-1,3(2H,9bH)-dione
InChI 1S/C18H16O7/c1-6-14(22)12(8(3)20)16-13(15(6)23)18(4)10(25-16)5-9(21)11(7(2)19)17(18)24/h5,11,22-23H,1-4H3
Melting Point 204°C
Molar Mass 344.32 g/mol
Molecular Formula C18H16O7
RTECS Number HP5270000
Synonyms Usneine;Usninic Acid;2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-1,3(2H,9bh)-dibenzofurandione;1,3(2H,9bH)-Dibenzofurandione,2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-;NSC 8517;Usnein;Usniacin;Usno;Usnic Acid uses cookies to ensure that we give you the best experience on our website. By using this site, you agree to our Privacy Policy and our Terms of Use. X