BAR-501

Alias: BAR 501; BAR-501; BAR501
Cat No.:V12282 Purity: ≥98%
BAR-501 is a selective GPBAR1 agonist devoid of any FXR agonistic activity.
BAR-501 Chemical Structure CAS No.: 1632118-69-4
Product category: GPCR19
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

BAR-501 is a selective GPBAR1 agonist devoid of any FXR agonistic activity. BAR501 successfully countered norepinephrine's vasoconstriction action and lowered the hepatic perfusion pressure. BAR501 demonstrates both genomic and non-genomic effects on CSE, eNOS, and ET-1 in liver sinusoidal cells, thereby providing rescue from endothelial dysfunction in rodent models of portal hypertension.

Biological Activity I Assay Protocols (From Reference)
Targets
GPBAR1 ( EC50 = 1 μM )
ln Vitro
BAR501 is a GPBAR1 agonist that is selective and does not agonistically activate FXR. HEK293 cells overexpressing a CRE in addition to GPBAR1 are effectively transactivated by it, with an EC50 of 1 μM. GLP-1 mRNA expression rises by 2.5 times in GLUTAg cells exposed to BAR501 (10 μM)[1].
ln Vivo
BAR501, 15 mg/kg, is administered to rats for six days in order to lower basal portal pressure and lessen norepinephrine's vasoconstriction effect. Hepatic vasomotor activity caused by methoxamine and shear stress is reduced when BAR501 is administered beforehand. Giving BAR501 to the CCl4 model causes a direct vasodilatory effect. In mice, portal pressure and AST plasma levels are decreased by BAR501 treatment at a dose of 15 mg/kg. Through the regulation of CSE expression and activity, BAR501 mitigates endothelial dysfunction[1].
Cell Assay
HEK-293T cells are plated at 10,000 cells/well in a 24-well plate for GPBAR1-mediated transactivation. The cells are then transfected with 200 ng of pGL4.29, a reporter vector that contains a cAMP response element (CRE) that drives the transcription of the luciferase reporter gene luc2P, with 100 ng of pCMVSPORT6-human GPBAR1, and with 100 ng of pGL4.70. The luciferase activities of HepG2 and HEK293T cells are measured and normalized against the Renilla activities after 18 hours of incubation with 10 μM BAR501 at 24 hours post-transfection[1].
Animal Protocol
Mice: For nine weeks, i.p. 500 μL/Kg body weight of CCl4 in an equivalent volume of paraffin oil is given to C57BL6 mice twice a week. BAR501 (15 mg/Kg daily by gavage) or vehicle (distilled water) is randomized to be given to CCL4 mice. Routine biochemical clinical chemistry is used to measure serum bilirubin, albumin, aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase[1].
References

[1]. Reversal of Endothelial Dysfunction by GPBAR1 Agonism in Portal Hypertension Involves a AKT/FOXOA1 Dependent Regulation of H2S Generation and Endothelin-1. PLoS One. 2015 Nov 5;10(11):e0141082.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H46O3
Molecular Weight
406.6416
Exact Mass
406.34
Elemental Analysis
C, 76.79; H, 11.40; O, 11.80
CAS #
1632118-69-4
Related CAS #
1632118-69-4
Appearance
Solid powder
SMILES
CC[C@H]1[C@@H]2C[C@@H](CC[C@@]2([C@H]3CC[C@]4([C@H]([C@@H]3[C@H]1O)CC[C@@H]4[C@H](C)CCCO)C)C)O
InChi Key
DQBAHTQWQZRMFH-CRPAWOMZSA-N
InChi Code
InChI=1S/C26H46O3/c1-5-18-22-15-17(28)10-12-26(22,4)21-11-13-25(3)19(16(2)7-6-14-27)8-9-20(25)23(21)24(18)29/h16-24,27-29H,5-15H2,1-4H3/t16-,17-,18+,19-,20+,21+,22+,23+,24+,25-,26-/m1/s1
Chemical Name
(3R,5S,6S,7S,8S,9S,10S,13R,14S,17R)-6-ethyl-17-[(2R)-5-hydroxypentan-2-yl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,7-diol
Synonyms
BAR 501; BAR-501; BAR501
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)
DMSO: ≥ 50 mg/mL (~123 mM)
Ethanol: ~120 mg/mL (~295.1 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 3 mg/mL (7.38 mM) in 10% EtOH + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 30.0 mg/mL clear EtOH stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
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.

Solubility in Formulation 2: ≥ 3 mg/mL (7.38 mM) (saturation unknown) in 10% EtOH + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 30.0 mg/mL clear EtOH stock solution to 900 μL of corn oil and mix well.

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Solubility in Formulation 3: ≥ 2.75 mg/mL (6.76 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 27.5 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.


Solubility in Formulation 4: ≥ 2.75 mg/mL (6.76 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 27.5 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
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.

Solubility in Formulation 5: ≥ 2.75 mg/mL (6.76 mM)(saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one),clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 27.5 mg/mL clear DMSO stock solution to 900 μL corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.4592 mL 12.2959 mL 24.5918 mL
5 mM 0.4918 mL 2.4592 mL 4.9184 mL
10 mM 0.2459 mL 1.2296 mL 2.4592 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.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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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.

Biological Data
  • Administration of BAR501 exerts a direct vasodilatory activity in the CCl4 model. PLoS One . 2015 Nov 5;10(11):e0141082.
  • BAR501 regulates the expression of CSE and ET-1 in the CCl4 model of liver cirrhosis. PLoS One . 2015 Nov 5;10(11):e0141082.
  • BAR501 correct for endtothelial dysfunction caused by methionine diet. PLoS One . 2015 Nov 5;10(11):e0141082.
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