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Questin
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Catalog No. TN2131Cas No. 3774-64-9
Questin is an antimicrobial agent derived from Aspergillus florescens with an antimicrobial activity profile that inhibits V. harveyi, V. anguillarum, V. cholerae and V. parahemolyticus with MIC values of 31.25 µg/mL, 62.5 µg/mL, 62.5 µg/mL and 125 µg/mL, respectively. Questin has good potential to inhibit AChE, BChE and BACE1 and may be used in the development of drugs for the treatment or prevention of Alzheimer's disease.
Questin
😃Good
Catalog No. TN2131Cas No. 3774-64-9
Questin is an antimicrobial agent derived from Aspergillus florescens with an antimicrobial activity profile that inhibits V. harveyi, V. anguillarum, V. cholerae and V. parahemolyticus with MIC values of 31.25 µg/mL, 62.5 µg/mL, 62.5 µg/mL and 125 µg/mL, respectively. Questin has good potential to inhibit AChE, BChE and BACE1 and may be used in the development of drugs for the treatment or prevention of Alzheimer's disease.
| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 5 mg | $813 | Inquiry | Inquiry | |
| 1 mL x 10 mM (in DMSO) | $1,278 | Inquiry | Inquiry |
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In Stock Estimated shipping dateUSA Warehouse[1-2 days] Global Warehouse[5-7 days]
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Appearance:Solid
Color:Yellow
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Product Introduction
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| Description | Questin is an antimicrobial agent derived from Aspergillus florescens with an antimicrobial activity profile that inhibits V. harveyi, V. anguillarum, V. cholerae and V. parahemolyticus with MIC values of 31.25 µg/mL, 62.5 µg/mL, 62.5 µg/mL and 125 µg/mL, respectively. Questin has good potential to inhibit AChE, BChE and BACE1 and may be used in the development of drugs for the treatment or prevention of Alzheimer's disease. |
| Targets&IC50 | V. parahemolyticus:125 µg/mL, V. cholerae:62.5 µg/mL, V. harveyi:31.25 µg/mL, V. anguillarum:62.5 µg/mL |
| In vitro | Fractionation of culture extracts using RP-HPLC and LC-MS showed that samples containing Questin was toxic to the human A549 lung cell line.[1] |
| Molecular Weight | 284.26 |
| Formula | C16H12O5 |
| Cas No. | 3774-64-9 |
| Smiles | O=C1C=2C=C(O)C=C(OC)C2C(=O)C3=C(O)C=C(C=C13)C |
| Relative Density. | 1.448g/cm3 |
| Storage | store at low temperature,keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
Calculator
In Vivo Formulation Calculator (Clear solution)
Please enter your animal experiment information in the following box and click Calculate to obtain the stock solution preparation method and in vivo formula preparation method:
For example, if the intended dosage is 10 mg/kg for animals weighing 20 g , with a dosing volume of 100 μL per animal, and a total of 10 animals are to be administered, using a formulation of 
10% DMSO+ 40% PEG300+ 5% Tween 80+ 45% Saline/PBS/ddH2O , the resulting working solution concentration would be 2 mg/mL.Stock Solution Preparation:
Dissolve 2 mg of the compound in 100 μL DMSO to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
Preparation of the In Vivo Formulation:
1) Add 100 μL of the DMSO stock solution to 400 μL PEG300 and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O and mix thoroughly until a homogeneous solution is obtained.
This example is provided solely to demonstrate the use of the In Vivo Formulation Calculator and does not constitute a recommended formulation for any specific compound. Please select an appropriate dissolution and formulation strategy based on your experimental model and route of administration.
Dose Conversion
You can also refer to dose conversion for different animals. More Dose Conversion
Tech Support
Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc
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