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Merck

329967

Sigma-Aldrich

(+)-Usnic acid

98%

Sinónimos:

(+)-Usnic acid from Usnea dasypoga, 2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3(2H,9bH)-dione

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About This Item

Fórmula empírica (notación de Hill):
C18H16O7
Número de CAS:
Peso molecular:
344.32
Beilstein/REAXYS Number:
96698
EC Number:
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

98%

form

powder

optical activity

[α]25/D +488°, c = 0.7% in chloroform

mp

201-203 °C (lit.)

functional group

ketone

SMILES string

C[C@](C1=C(O)C(C)=C(O)C(C(C)=O)=C1O2)(C(C3C(C)=O)=O)C2=CC3=O

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/t18-/m1/s1

InChI key

ICTZCAHDGHPRQR-GOSISDBHSA-N

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General description

(+)-Usnic acid is a bioactive compound mainly found as a secondary metabolite in lichens.

Application

(+)-Usnic acid has been used to study the following:
  • The mechanism of its antimicrobial activity in bacterial cells.
  • Its ability as an antibiofilm agent against Group A Streptococci (GAS).
  • Its ability as a potent anti-virulent compound against Candida albicans.
  • The mechanism of its toxic effect on hepatocytes.
  • Its ability to inhibit the motility of human lung cancer cells.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Los clientes también vieron

Inhibitory Activity of (+)-Usnic Acid against Non-Small Cell Lung Cancer Cell Motility.
Yang Y, et al.
PLoS ONE, 11(1), e0146575-e0146575 (2016)
Michal Goga et al.
Ecology and evolution, 8(5), 2781-2787 (2018-03-14)
Lichens and mosses often share the same environmental conditions where they compete for substrate and other essential factors. Lichens use secondary metabolites as allelochemicals to repel surrounding plants and potential rivals. In mosses, endoreduplication leads to the occurrence of various
Sohaila Erfani et al.
Iranian journal of basic medical sciences, 23(9), 1225-1231 (2020-09-24)
Cerebral ischemia/reperfusion causes complex pathological mechanisms that lead to brain tissue damage. Usnic acid is a lichen secondary metabolite that has many different biological properties including anti-inflammatory and anti-oxidant activities. Therefore, the objective of the current study was to investigate
Usnic acid, a lichen secondary metabolite inhibits Group A Streptococcus biofilms.
Nithyanand P, et al.
Antonie van Leeuwenhoek, 107(1), 263-272 (2015)
Antibacterial activity of lichen secondary metabolite usnic acid is primarily caused by inhibition of RNA and DNA synthesis.
Maciag-Dorszynska M, et al.
FEMS Microbiology Letters, 353(1), 57-62 (2014)

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