2. Anti-infection
  3. Bacterial Antibiotic
  4. LasR-IN-3

LasR-IN-3 is a LasR inhibitor against Pseudomonas aeruginosa. LasR-IN-3 induces LasR structure instability and completely dissociates LasR functioning dimeric form.

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LasR-IN-3 Chemical Structure

LasR-IN-3 Chemical Structure

CAS No. : 2810894-92-7

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Based on 1 publication(s) in Google Scholar

LasR-IN-3 Related Antibodies

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Description

LasR-IN-3 is a LasR inhibitor against Pseudomonas aeruginosa. LasR-IN-3 induces LasR structure instability and completely dissociates LasR functioning dimeric form[1].

IC50 & Target

LasR[1]
In Vitro

LasR-IN-3 (compound 7f) (4.68-150 μg/mL; 24 h) shows anti-activity against Pseudomonas aeruginosa with MIC and sub-MIC values of 56.25 μg/mL and 14.00 μg/mL[1].
LasR-IN-3 (14.00 μg/mL; 24 h, or 48 h) inhibits biofilm formation, pyocyanin, and rhamnolipids production with inhibition rate of 71.70%, 68.70%, 54.00%, respectively[1].
LasR-IN-3 (56.25 μg/mL, and 338.0 μg/mL; 24 h) is safe to normal cell line (HDFa)[1].
LasR-IN-3 (14.00 μg/mL; 24 h) decreases lasR and rhlR gene expression and inhibits the QS-dependent biofilm formation and virulence factors[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

LasR-IN-3 Related Antibodies

RT-PCR[1]

Cell Line: Pseudomonas aeruginosa
Concentration: 14.00 μg/mL
Incubation Time: 24 hours
Result: Decreased lasR and rhlR expression by 26% and 16.3%, respectively.
Molecular Weight

357.41

Formula

C22H19N3O2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(NC1=CC=CC=C1C)COC2=CC=C(C3=NC4=CC=CC=C4N3)C=C2
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (279.79 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.7979 mL 13.9895 mL 27.9791 mL
5 mM 0.5596 mL 2.7979 mL 5.5958 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (6.99 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (6.99 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.7979 mL 13.9895 mL 27.9791 mL 69.9477 mL
5 mM 0.5596 mL 2.7979 mL 5.5958 mL 13.9895 mL
10 mM 0.2798 mL 1.3990 mL 2.7979 mL 6.9948 mL
15 mM 0.1865 mL 0.9326 mL 1.8653 mL 4.6632 mL
20 mM 0.1399 mL 0.6995 mL 1.3990 mL 3.4974 mL
25 mM 0.1119 mL 0.5596 mL 1.1192 mL 2.7979 mL
30 mM 0.0933 mL 0.4663 mL 0.9326 mL 2.3316 mL
40 mM 0.0699 mL 0.3497 mL 0.6995 mL 1.7487 mL
50 mM 0.0560 mL 0.2798 mL 0.5596 mL 1.3990 mL
60 mM 0.0466 mL 0.2332 mL 0.4663 mL 1.1658 mL
80 mM 0.0350 mL 0.1749 mL 0.3497 mL 0.8743 mL
100 mM 0.0280 mL 0.1399 mL 0.2798 mL 0.6995 mL
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LasR-IN-3 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

LasR-IN-32810894-92-7BacterialAntibioticanti-biofilm agentstructure instabilityPseudomonas aeruginosabiofilm formationpyocyaninrhamnolipids productionlasRrhlRInhibitorinhibitorinhibit

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