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FXR antagonist 4

Cat No.:V136431 Purity: ≥98%
FXR antagonist 4 is an orally effective selective FXR antagonist with an IC50 value of 0.70 μM.
FXR antagonist 4
FXR antagonist 4 Chemical Structure Product category: AMPK
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
1g
Other Sizes
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Product Description
FXR antagonist 4 is an orally effective selective FXR antagonist with an IC50 of 0.70 μM. FXR antagonist 4 binds to FXR and differentially modulates bile acid and lipid transporter genes without affecting gluconeogenesis-related genes. FXR modulator 1 activates the AMPK signaling pathway, thereby inhibiting fatty acid synthesis. FXR modulator 1 can alleviate hepatic steatosis, ballooning degeneration, and fibrosis, and improve dyslipidemia. FXR modulator 1 can be used in research on metabolic dysfunction-related steatohepatitis.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
FXR regulator 1 effectively inhibited CDCA-induced FXR activation in HEK293T cells with an IC50 value of 0.70 μM[1]. FXR regulator 1 (10 μM) effectively blocked CDCA-induced recruitment of SRC1-2 coactivator peptides to purified FXR-LBD with an inhibition rate of over 90%[1]. FXR regulator 1 (1-10 μM; 24 h) acted as a selective FXR regulator in HepG2 cells, regulating bile acid and lipid metabolism genes (SHP, BSEP, SREBP-1c, CYP7A1) in a dose-dependent manner, while having no effect on gluconeogenesis genes (PEPCK, G6Pase)[1]. FXR regulator 1 (2-10 μM) activated the AMPK-ACC pathway in cultured cells in a dose-dependent manner and increased the phosphorylation levels of AMPK and ACC[1].
ln Vivo
FXR modulator 1 (compound 4l) (25-100 mg/kg; orally; daily; 12 weeks) dose-dependently improved hepatic steatosis, ballooning degeneration, fibrosis and dyslipidemia in CDA-HFD-induced MASH mice, with a 100 mg/kg dose restoring lipid parameters to near-normal levels and reducing total NAS score to 2.2 [1].
Cell Assay
Real-time quantitative PCR [1]
Cell Types: HepG2 cells
Tested Concentrations: 1-10 μM
Incubation Duration: 24 h
Experimental Results: Both alone and in combination with CDCA downregulated the mRNA levels of SHP, BSEP, and SREBP-1c, and completely reversed CDCA-induced SREBP-1c expression at 10 μM. Compared with the solvent control group, both alone and in combination with CDCA upregulated the CYP7A1 mRNA level in a dose-dependent manner. Neither alone nor in combination with CDCA had a significant effect on the expression of gluconeogenesis genes PEPCK and G6Pase.
Animal Protocol
Animal/Disease Models:C57BL/6 (male, fed CDA-HFD for 3 weeks to induce MASH before treatment)[1]
Doses: 25 mg/kg; 50 mg/kg; 100 mg/kg
Route of Administration: Oral; once daily; for 12 weeks
Experimental Results: The dose-dependent reduction of elevated alanine aminotransferase (ALT), aspartate aminotransferase (AST), triglycerides (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), and hepatic hydroxyproline (Hyp) levels, while increasing high-density lipoprotein cholesterol (HDL-C) levels; the 100 mg/kg dose restored lipid parameters to near-normal levels. The dose-dependent reduction of liver/body weight ratio, thereby reversing hepatomegaly. The dose-dependent reduction of macrovesicular steatosis, hepatocyte ballooning degeneration, lipid droplet accumulation, and collagen deposition in the liver. The total NAS score decreased from 5.4 (model group) to 3.6 (25 mg/kg), 3.1 (50 mg/kg), and 2.2 (100 mg/kg); and the subscores of hepatocellular ballooning degeneration and steatosis were reduced in a dose-dependent manner.
References

[1]. Discovery of 7-ether substituted homoisoflavonoids as selective FXR modulators attenuating MASH via the FXR and AMPK pathways. Eur J Med Chem. 2026;311:118837.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C25H20O6
Molecular Weight
416.42
Appearance
Typically exists as solids at room temperature
SMILES
COC1=CC=CC(CC2=COC3=C(C2=O)C=CC(OCC4=CC=C(C=C4)C(O)=O)=C3)=C1
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 2.4014 mL 12.0071 mL 24.0142 mL
5 mM 0.4803 mL 2.4014 mL 4.8028 mL
10 mM 0.2401 mL 1.2007 mL 2.4014 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

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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?
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  • 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:
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  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
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  • 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:
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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.

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  • 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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