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TLR4/NF-κB-IN-2

Cat No.:V146159 Purity: ≥98%
TLR4/NF-κB-IN-2 is an orally effective TLR4/NF-κB inhibitor and Nrf2/HO-1 activator.
TLR4/NF-κB-IN-2
TLR4/NF-κB-IN-2 Chemical Structure Product category: ROS
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
1g
Other Sizes
Official Supplier of:
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Product Description
TLR4/NF-κB-IN-2 is an orally effective TLR4/NF-κB inhibitor and Nrf2/HO-1 activator. TLR4/NF-κB-IN-2 combats oxidative stress and exerts anti-inflammatory effects by modulating the Nrf2/HO-1 and TLR4/NF-κB pathways. TLR4/NF-κB-IN-2 can reduce Aβ aggregation and protect neurons. TLR4/NF-κB-IN-2 may be used in Alzheimer's disease research.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
TLR4/NF-κB-IN-2 (compound G-12) (5 μM; pre-incubation for 1 h, LPS stimulation for 24 h) effectively inhibited LPS-induced NO production in BV2 cells, with an IC50 value of 1.39 ± 0.11 μM [1]. TLR4/NF-κB-IN-2 (2.5-10 μM; pre-incubation for 3 h, H2O2 exposure for 24 h) effectively protected PC12 cells from H2O2-induced cell death, with an IC50 value of 1.29 ± 0.02 μM, and increased cell viability in a concentration-dependent manner [1]. TLR4/NF-κB-IN-2 (2.5-10 μM; pre-incubation for 2 h, LPS stimulation for 6 h) reduced LPS-induced intracellular ROS accumulation in BV2 cells in a dose-dependent manner [1]. TLR4/NF-κB-IN-2 (2.5-10 μM; pre-incubation for 2 hours, LPS stimulation for 24 hours) can activate the Nrf2/HO-1 signaling pathway in LPS-stimulated BV2 cells, enhancing Nrf2 nuclear translocation and HO-1 expression in a concentration-dependent manner [1]. TLR4/NF-κB-IN-2 (2.5-10 μM; pre-incubation for 2 hours, LPS stimulation for 24 hours) can inhibit the TLR4/NF-κB signaling pathway in LPS-induced BV2 cells, reducing TLR4 expression and the phosphorylation levels of downstream IκBα and p65 in a concentration-dependent manner [1].
ln Vivo
TLR4/NF-κB-IN-2 (compound G-12) (2.5-10 mg/kg; orally; once daily for 7 days) can dose-dependently improve cognitive function, reduce the accumulation of Aβ1-42, protect hippocampal neurons, inhibit glial cell activation and neuroinflammation, and alleviate oxidative stress in Aβ1-42-induced Alzheimer's disease model mice [1].
Cell Assay
Cell viability assay [1]
Cell Types: PC12 rat pheochromocytoma cells
Tested Concentrations: 2.5, 5 and 10 μM
Incubation Duration: 3 hours (pre-incubation); 24 hours (H2O2 treatment)
Experimental Results: The viability of PC12 cells treated with H2O2 increased from 50.66% to 73.85% (2.5 μM), 86.92% (5 μM) and 94.16% (10 μM). It had a protective effect against H2O2-induced cell death, with an IC50 value of 1.29 μM.
Western Blot Analysis [1]
Cell Types: BV2 mouse microglia
Tested Concentrations: 2.5, 5, and 10 μM
Incubation Duration: 2 hours (pre-incubation); 24 hours (LPS stimulation)
Experimental Results: LPS-induced Nrf2 nuclear translocation was enhanced in a concentration-dependent manner. HO-1 protein expression increased in a concentration-dependent manner, with the HO-1/β-actin ratio increasing from ~0.8 (LPS only) to approximately 1.0 (2.5 μM), ~1.0 (5 μM), and ~1.2 (10 μM). LPS-induced TLR4 protein expression decreased in a concentration-dependent manner, with the TLR4/β-actin ratio decreasing from ~1.0 (LPS only) to approximately 0.5 (10 μM). IκBα phosphorylation levels decreased in a concentration-dependent manner, with the P-IκBα/IκBα ratio decreasing from ~1.1 (LPS group only) to approximately 0.8 (10 μM). p65 phosphorylation levels also decreased in a concentration-dependent manner, with the P-p65/p65 ratio decreasing from ~1.1 (LPS group only) to approximately 0.7 (10 μM).
Animal Protocol
Animal/Disease Models:ICR mice (male, 6-8 weeks old, 18-25 g, induced by intraventricular injection of Aβ1-42 peptide)[1]
Doses: 2.5 mg/kg; 10 mg/kg
Route of Administration: Oral; once daily for 7 days
Experimental Results: Reversed the reduction in total movement distance, average speed and central region movement distance in the Aβ1-42-induced open field test. In a 5-day Morris water maze training, it shortened the escape latency, increased the number of platform crossings, and increased the time spent in the target quadrant in the probe test. Hippocampal Aβ1-42 concentrations decreased from approximately 70 μg/L to approximately 60 μg/L (2.5 mg/kg) and approximately 48 μg/L (10 mg/kg); whole-brain Aβ1-42 concentrations decreased from approximately 42 μg/L to approximately 38 μg/L (2.5 mg/kg) and approximately 31 μg/L (10 mg/kg). The number of neurons in the hippocampal dentate gyrus (DG), CA1, and CA3 regions increased; at a dose of 10 mg/kg, the number of DG neurons increased from approximately 240 to approximately 460, and the number of CA1 neurons increased from approximately 80 to approximately 150. A dose-dependent reduction in the percentage of GFAP-positive astrocytes and Iba-1-positive microglia in the hippocampus was observed, causing glial cells to transition from a reactive to a resting morphology. Hippocampal TNF-α levels decreased from approximately 185 pg/mL to approximately 148 pg/mL (2.5 mg/kg) and approximately 105 pg/mL (10 mg/kg); IL-6 levels decreased from approximately 228 pg/mL to approximately 165 pg/mL (2.5 mg/kg) and approximately 135 pg/mL (10 mg/kg); hippocampal MDA levels decreased from approximately 180 nmol/mg protein to approximately 165 nmol/mg protein (2.5 mg/kg) and approximately 120 nmol/mg protein (10 mg/kg); SOD activity increased from approximately 2.8 U/mg protein to approximately 3.8 U/mg protein (2.5 mg/kg) and approximately 4.2 U/mg protein (10 mg/kg).
References

[1]. Discovery and structure-activity relationship of cannabidiol aminoquinones as anti-Alzheimer's agents via dual modulation of Nrf2/HO-1 and TLR4/NF-κB pathways. Bioorg Chem. 2026;172:109590.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C27H32FNO3
Molecular Weight
437.55
Appearance
Typically exists as solids at room temperature
SMILES
O=C(C(O)=C1[C@@H]2C=C(C)CC[C@H]2C(C)=C)C(CCCCC)=C(NC3=CC=C(F)C=C3)C1=O
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.2855 mL 11.4273 mL 22.8545 mL
5 mM 0.4571 mL 2.2855 mL 4.5709 mL
10 mM 0.2285 mL 1.1427 mL 2.2855 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution 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 stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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