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Methyl 7α-hydroxy-3-ketocholanoate

7α-Hydroxy-3-ketocholanoic acid methyl ester is a bile acid compound that can be used in the study of neurological diseases.
Methyl 7α-hydroxy-3-ketocholanoate
Methyl 7α-hydroxy-3-ketocholanoate Chemical Structure CAS No.: 14773-00-3
Product category: Biochemical Assay Reagents
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
Methyl 7α-hydroxy-3-ketocholanoate is a bile acid compound that can be used in neurological disease research.
Methyl 7alpha-hydroxy-3-ketocholanoate (7alpha-Hydroxy-3-ketocholanoic acid methyl ester, CAS 14773-00-3) is a bile acid derivative with the molecular formula C25H40O4 and a molecular weight of 404.58. It appears as a white solid. This compound is a research chemical and a biochemical assay reagent, identified for potential use in the study of neurological diseases. It is not a drug but serves as a tool for investigating bile acid metabolism and signaling.
Biological Activity I Assay Protocols (From Reference)
Targets
Methyl 7alpha-hydroxy-3-ketocholanoate has a role as a bile acid compound. It may interact with bile acid receptors such as the farnesoid X receptor (FXR) or the G protein-coupled bile acid receptor 1 (TGR5), though this is not explicitly confirmed. Its structure, with a hydroxyl group at the 7alpha position and a ketone at the 3-position, suggests it is likely an intermediate or a synthetic analog in bile acid pathways. Its potential use in neurological disease research suggests it may have effects on the central nervous system via these receptors.
ln Vitro
In non-cell assays, Methyl 7alpha-hydroxy-3-ketocholanoate can be used to study the activity of enzymes involved in bile acid metabolism, such as hydroxysteroid dehydrogenases. The compound can serve as a substrate, and the conversion to its product can be monitored by HPLC or LC-MS/MS. It can also be utilized as an analytical standard to identify and quantify related bile acid metabolites in biological samples.
ln Vivo
No specific in vitro cell-based bioactivity data is available for Methyl 7alpha-hydroxy-3-ketocholanoate. It may be used to treat neuronal cell lines to study its effects on cell viability, gene expression, or signaling pathways related to neuroprotection or neurodegeneration. For example, cells could be treated with the compound (e.g., 1-50 uM) for 24-72 hours, and markers of oxidative stress or inflammation could be measured.
Enzyme Assay
For a non-cell analytical assay, Methyl 7alpha-hydroxy-3-ketocholanoate can be analyzed by HPLC with UV detection. A standard solution is prepared by dissolving the compound in methanol. The sample is injected onto a reverse-phase C18 column, eluted with a mobile phase of acetonitrile and water, and detected at a wavelength of 210 nm. The retention time and peak area are used for identification and quantification.
Cell Assay
No specific in vitro cell-based assay protocols for Methyl 7alpha-hydroxy-3-ketocholanoate are available. To study its potential effects, a researcher could treat a neuronal cell line like SH-SY5Y with the compound at varying concentrations (e.g., 0.1-100 uM) for 24-48 hours. Cell viability would then be assessed using an MTT assay. The expression of genes related to bile acid signaling, such as FXR or TGR5, could be measured by qPCR.
Animal Protocol
No in vivo animal model studies for Methyl 7alpha-hydroxy-3-ketocholanoate are available. However, given its potential use in neurological disease research, a standard protocol could involve administering the compound to mouse models of neurodegenerative diseases, such as Alzheimer's or Parkinson's disease. The compound would be administered by intraperitoneal injection (e.g., 10-100 mg/kg) for several weeks. Cognitive function or motor performance would be assessed, and brain tissue would be analyzed for pathology markers.
ADME/Pharmacokinetics
Pharmacokinetic data for Methyl 7alpha-hydroxy-3-ketocholanoate is not available. As a bile acid ester, it is expected to be lipophilic and may have good cell permeability. It is likely to be metabolized by esterases to the corresponding free acid, which could then be conjugated with taurine or glycine and excreted. For research use, it is stored as a powder at -20degC, where it is stable for up to three years.
Toxicity/Toxicokinetics
Specific toxicity data for Methyl 7alpha-hydroxy-3-ketocholanoate is not available. Bile acids and their derivatives can be cytotoxic at high concentrations. Standard safety practices for handling research chemicals should be followed, including the use of PPE (gloves, lab coat, safety goggles). It is intended for research use only and is not for human or veterinary use.
References

[1]. Alexander Charles Weymouth-Wilson, et al. 2-fluorinated bile acids for the treatment of neurodegenerative diseases. 20191220.

Additional Infomation
Methyl 7alpha-hydroxy-3-ketocholanoate is a research chemical and is not an FDA-approved drug. It has no approved clinical use. It is primarily a biochemical tool for researchers studying bile acid synthesis, metabolism, and signaling, with a specific reported potential in the context of neurological diseases. It is supplied as a high-purity solid for in vitro and preclinical research applications.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C25H40O4
Molecular Weight
404.58
Exact Mass
404.293
CAS #
14773-00-3
PubChem CID
11750068
Appearance
Typically exists as solids at room temperature
LogP
4.775
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
4
Rotatable Bond Count
5
Heavy Atom Count
29
Complexity
659
Defined Atom Stereocenter Count
9
SMILES
CC(CCC(=O)OC)C1CCC2C1(CCC3C2C(CC4C3(CCC(=O)C4)C)O)C
InChi Key
XHRLTYUHWGHDCJ-WZAAVQHPSA-N
InChi Code
InChI=1S/C25H40O4/c1-15(5-8-22(28)29-4)18-6-7-19-23-20(10-12-25(18,19)3)24(2)11-9-17(26)13-16(24)14-21(23)27/h15-16,18-21,23,27H,5-14H2,1-4H3/t15-,16+,18-,19+,20+,21-,23+,24+,25-/m1/s1
Chemical Name
methyl (4R)-4-[(5R,7R,8R,9S,10S,13R,14S,17R)-7-hydroxy-10,13-dimethyl-3-oxo-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate
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 2.4717 mL 12.3585 mL 24.7170 mL
5 mM 0.4943 mL 2.4717 mL 4.9434 mL
10 mM 0.2472 mL 1.2358 mL 2.4717 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:

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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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