Cholic acid

Catalog No.S3742

For research use only.

Cholic acid is a naturally occurring bile acid that is insoluble in water and is used to treat patients with genetic deficiencies in the synthesis of bile acids.

Cholic acid Chemical Structure

CAS No. 81-25-4

Selleck's Cholic acid has been cited by 1 Publication

Purity & Quality Control

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Biological Activity

Description Cholic acid is a naturally occurring bile acid that is insoluble in water and is used to treat patients with genetic deficiencies in the synthesis of bile acids.
In vitro

Fosfomycin is known to inhibit MurA by covalently binding to a highly conserved cysteine in the active site of the enzyme. Fosfomycin is a PEP mimetic that acts by alkylating the highly conserved Cys115 (Escherichia coli numbering) of MurA[1]. Fosfomycin exerts immunomodulatory effects by altering lymphocyte, monocyte and neutrophil function. It affects the acute inflammatory cytokine response in vitro and in vivo. It suppresses production of tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β), and IL-1α and increases production of IL-10. Fosfomycin suppresses IL-2 production from T cells, the production of leukotriene B4 (LTB4) from neutrophils, and the expression of IL-8 mRNA by LTB4 from monocytes. Fosfomycin also exhibits an immunomodulatory effect on B-cell activation. Fosfomycin enhances neutrophil phagocytic killing of invading pathogens, even in patients on chronic hemodialysis and renal transplantation. Fosfomycin resulted in enhanced bactericidal ability of neutrophils compared to other antimicrobials. Fosfomycin has the ability to penetrate into biofilms. fosfomycin is considerably active against both Gram-negative and Gram-positive pathogens[2].

In vivo The oral bioavailability of fosfomycin trometamol ranges between 34 and 58%. Absorption occurs in the small intestine, and evidence suggests that coadministration of fosfomycin trometamol with food may reduce absorption of the drug.The mean serum elimination half-life (t1/2) of fosfomycin trometamol is estimated at 5.7 h. Fosfomycin is excreted nonmetabolized in the urine, through glomerular filtration. Depending on age, fasting, and renal function, 11 to 60% of the drug can be found in the urine within 24 h from administration. Specifically, older age, administration with a meal, and deteriorating renal function result in slower elimination through the kidneys. Fosfomycin crosses the blood-brain barrier, and meningeal inflammation increases its concentration in the CSF. Fosfomycin also penetrates in both cortical and cancellous bone, and penetration correlates with plasma levels and the presence of inflammation[2].

Protocol (from reference)

Solubility (25°C)

In vitro

DMSO 81 mg/mL
(198.25 mM)
Ethanol 28 mg/mL
(68.53 mM)
Water Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 408.57


CAS No. 81-25-4
Storage 3 years -20°C powder
2 years -80°C in solvent

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg g μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO % % Tween 80 % ddH2O

Calculation results:

Working concentration: mg/ml;

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

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment Interventions Conditions Sponsor/Collaborators Start Date Phases
NCT02654496 Completed Other: Meal challenge Obesity North Dakota State University January 2016 --
NCT00596427 Completed Drug: Colesevelam HCL|Drug: Placebo Diabetes Carine Beysen|KineMed November 2007 Not Applicable

(data from, updated on 2022-01-17)

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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