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Substance Name: (+)-Usnic acid
RN: 7562-61-0
UNII: 663456969I
InChIKey: ICTZCAHDGHPRQR-UHFFFAOYSA-N

Classification Code

  • Reproductive Effect

Molecular Formula

  • C18-H16-O7

Molecular Weight

  • 344.317
 
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Names and Synonyms

Name of Substance

  • (+)-Usnic acid

Synonyms

  • (+)-Usnic acid
  • 1,3(2H,9bH)-dibenzofurandione, 2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-, (9bR)-
  • 3(9bH)-dibenzofuranone, 2,6-diacetyl-8,9b-dimethyl-1,7,9-trihydroxy-, D-
  • d-Usnic acid
  • d-Usninic acid
  • EINECS 231-456-0
  • NSC 5890
  • UNII-663456969I
  • Usnic acid, D-

Systematic Names

  • (9bR)-2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-(2H,9bH)-dibenzofuran-1,3-dione
  • 3(9bH)-dibenzofuranone, 2,6-diacetyl-1,7,9-trihydroxy-8,9b-dimethyl-, D-
  • Usnic acid, (R)- (8CI)

Registry Numbers

CAS Registry Number

  • 7562-61-0

FDA UNII

  • 663456969I

System Generated Number

  • 0007562610

Structure Descriptors

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/h5,22-24H,1-4H3

InChIKey

ICTZCAHDGHPRQR-UHFFFAOYSA-N

Smiles

c12[C@@]3(C(Oc1c(c(O)c(c2O)C)C(C)=O)=CC(=O)C(=C3O)C(C)=O)C

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 838mg/kg (838mg/kg)   Takeda Kenkyusho Ho. Journal of the Takeda Research Laboratories. Vol. 31, Pg. 247, 1972.