BGC > CAS Search > 125-46-2

Molecular Formula: C18H16O7
Molecular Weight: 344.32
Hazard Symbols: T,N

Molecular Formula: C18H16O7
Molecular Weight: 344.32
Hazard Symbols: T,N

Description :
Usnic acid is a naturally occurring dibenzofuran derivative found in several lichen species with the formula C18H16O7. It was first isolated by German scientist W. Knop in 1844 and first synthesized between 1933-1937 by Curd and Robertson. Usnic acid was identified in many genera of lichens including Usnea, Cladonia, Hypotrachyna, Lecanora, Ramalina, Evernia, Parmelia and Alectoria. Although it is generally believed that usnic acid is exclusively restricted to lichens, in a few unconfirmed isolated cases. The compound was found in kombucha tea and non-lichenized ascomycetes. At normal conditions, usnic acid is a bitter, yellow, solid substance.It is known to occur in nature in both the d-and l-forms as well as a racemic mixture. Salts of usnic acid are called usnates (e.g. copper usnate). Usnic acid can be used in cosmetics material.

• Molecular Weight :344.32
• Boiling Point :594.8±50.0°C at 760 mmHg
• Melting Point :204°C
• Purity :> 98%

Molecular Formula :
C18H16O7
Canonical SMILES :
CC1=C(C(=C2C(=C1O)C3(C(=CC(=O)C(C3=O)C(=O)C)O2)C)C(=O)C)O
InChI :
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
InChIKey :
CUCUKLJLRRAKFN-UHFFFAOYSA-N
Solubility :
Soluble in DMSO (Slightly), Methanol (Slightly)
Appearance :
White solid
Application :
Bleeding, antibacterial, anti-inflammatory
Storage : Store at -20°C
Synonyms :
1,3(2H,9bH)-Dibenzofurandione, 2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-; 2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-1,3(2H,9bH)-dibenzofurandione; (±)-Usnic acid; 2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzo[b,d]furan-1,3(2H,9bH)-dione; NSC 8517; Usnein; Usniacin; Usno

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