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(+)-Usniacin

Catalog No.GC17330

(+) - L'usniacine est isolée À partir de lichens isolés, se lie À la poche de liaison À l'ATP de mTOR et inhibe l'activité de mTORC1/2. (+) - L'usniacine inhibe la phosphorylation des effecteurs en aval de mTOR : Akt (Ser473), 4EBP1, S6K, induit l'autophay, avec une activité anticancéreuse. (+) - L'usniacine possède une activité antimicrobienne contre un certain nombre de bactéries gram-positives planctoniques, notamment Staphylococcus aureus, Enterococcus faecalis et Enterococcus faecium.

Products are for research use only. Not for human use. We do not sell to patients.

(+)-Usniacin Chemical Structure

Cas No.: 7562-61-0

Taille Prix Stock Qté
10mM (in 1mL DMSO)
37,00 $US
En stock
10mg
38,00 $US
En stock
50mg
81,00 $US
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Sample solution is provided at 25 µL, 10mM.

Product Documents

Quality Control & SDS

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Background

MIC: 0.05 μg/62.5 μl to 3.1 μg/62.5 μl

Microorganisms can colonize a wide variety of medical devices, putting patients at risk for systemic and local infectious complications, including local-site infections, endocarditis, and catheter-related bloodstream infections. (+)-Usniacin is a secondary lichen metabolite that possesses antimicrobial activity against various planktonic gram-positive bacteria.

In vitro: (+)-Usniacin showed antimicrobial activity against the same microorganisms as that of acetone extract. Among the three analogues it was the most active one having quite low MIC values. Furthermore, (+)-Usniacin did not show any activity against A. hydrophila and B. cereus whereas (D)-usnic acid did. On the other hand, (+)-Usniacin was active against Y. enterocolitica whereas (D)-usnic acid was not active [1].

In vivo: No animal in-vivo study has been reproted so far.

Clinical trials: Trials carried out in volunteers showed that mouth-rinse with (+)-Usniacin preparations exerted a selective and long lasting action against S. mutans. The adherence of S. mutans to smooth surfaces was not increased by the presence of subinhibiting concentrations of (+)-Usniacin. These characteristics make (+)-Usniacin a suitable candidate for topical use in oral medicine [2].

References:
[1] Tay T, Türk AO, Yilmaz M, Türk H, Kivanç M.  Evaluation of the antimicrobial activity of the acetone extract of the lichen Ramalina farinacea and its (+)-usnic acid, norstictic acid, and protocetraric acid constituents. Z Naturforsch C. 2004 May-Jun;59(5-6):384-8.
[2] Ghione M, Parrello D, Grasso L.   Usnic acid revisited, its activity on oral flora. Chemioterapia. 1988 Oct;7(5):302-5.

Chemical Properties

Cas No. 7562-61-0 SDF
Canonical SMILES CC1=C(C(=C2C(=C1O)C3(C(=CC(=C(C3=O)C(=O)C)O)O2)C)C(=O)C)O
Formula C18H16O7 M.Wt 344.32
Solubility ≥ 8.0mg/mL in DMSO with gentle warming Storage 4°C, protect from light
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table

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1 mg 5 mg 10 mg
1 mM 2.9043 mL 14.5214 mL 29.0428 mL
5 mM 0.5809 mL 2.9043 mL 5.8086 mL
10 mM 0.2904 mL 1.4521 mL 2.9043 mL
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
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Review for (+)-Usniacin

Average Rating: 5 ★★★★★ (Based on Reviews and 31 reference(s) in Google Scholar.)

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