| Size | Price | Stock | Qty |
|---|---|---|---|
| 1mg |
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| Other Sizes |
| Targets |
7-Keto Cholesterol-d7 shares the same molecular characteristics as its non-deuterated form, 7-keto cholesterol. 7-Keto cholesterol is an oxysterol that is formed by the oxidation of cholesterol and is involved in various pathological processes, including inflammation and atherosclerosis. The labeled compound is used as an internal standard for the quantification of 7-keto cholesterol in biological samples.
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|---|---|
| ln Vitro |
Drug compounds have included stable heavy isotopes of carbon, hydrogen, and other elements, mostly as quantitative tracers while the drugs were being developed. Because deuteration may have an effect on a drug's pharmacokinetics and metabolic properties, it is a cause for concern [1].
The labeled compound does not possess in vitro biological activity. 7-Keto cholesterol is an oxysterol that can induce inflammation and apoptosis in cells, but it is not used as a pharmacological agent. The labeled compound is used as an analytical standard for the quantification of 7-keto cholesterol, not for evaluating its own biological activity. |
| ln Vivo |
7-Keto Cholesterol-d7 does not have in vivo biological activity and is not used for therapeutic purposes. 7-Keto cholesterol is a cholesterol metabolite that is elevated in chronic diseases. The labeled compound is used as an internal standard for the quantification of 7-keto cholesterol in biological samples for research and clinical studies.
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| Enzyme Assay |
In vitro assays for 7-keto cholesterol-d7 focus on its use as an analytical standard. A standard protocol involves preparing a solution of the compound in an appropriate solvent (e.g., methanol) and using it as an internal standard for LC-MS or GC-MS analysis of 7-keto cholesterol in biological samples (e.g., plasma, tissue). The compound is added to samples before extraction and analysis. Quantification is performed by monitoring specific mass transitions.
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| Cell Assay |
In vitro cell culture experiments are not performed with 7-keto cholesterol-d7. When studying the effects of oxysterols in cellular systems, the non-labeled compound is used. Cells are treated with 7-keto cholesterol, and inflammatory or apoptotic markers are measured. The labeled compound is used as an internal standard for LC-MS analysis.
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| Animal Protocol |
In vivo animal studies are not conducted with 7-keto cholesterol-d7. When used in metabolic studies, the labeled compound serves as an internal standard for the quantification of 7-keto cholesterol in animal tissues or biological fluids.
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| ADME/Pharmacokinetics |
Pharmacokinetic properties of 7-keto cholesterol-d7 itself are not characterized, as it is not a drug substance. 7-Keto cholesterol is a cholesterol metabolite that is formed and metabolized in the body. The labeled compound is used as an internal standard for metabolic studies.
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| Toxicity/Toxicokinetics |
7-Keto Cholesterol-d7 is not a therapeutic agent and has not been evaluated for toxicity in humans. 7-Keto cholesterol is an oxysterol that can be pro-inflammatory. Standard laboratory safety precautions should be followed when handling this compound, including the use of gloves and safety glasses.
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| References | |
| Additional Infomation |
7-Keto Cholesterol-d7 is a stable isotope-labeled internal standard used for the quantification of 7-keto cholesterol in biological samples. It is also known as 7-ketocholesterol-d7. The compound is used in analytical method development, quality control, and metabolic studies.
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| Molecular Formula |
C27H37D7O2
|
|---|---|
| Molecular Weight |
407.68
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| Exact Mass |
407.378
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| CAS # |
127684-08-6
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| Related CAS # |
7-Ketocholesterol;566-28-9
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| PubChem CID |
3247054
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| Appearance |
Typically exists as solid at room temperature
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| Density |
1.0±0.1 g/cm3
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| Boiling Point |
516.7±29.0 °C at 760 mmHg
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| Melting Point |
166-168°C (lit.)
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| Flash Point |
218.5±16.9 °C
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| Vapour Pressure |
0.0±3.0 mmHg at 25°C
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| Index of Refraction |
1.531
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| LogP |
7.57
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| Hydrogen Bond Donor Count |
1
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| Hydrogen Bond Acceptor Count |
2
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| Rotatable Bond Count |
5
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| Heavy Atom Count |
29
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| Complexity |
663
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| Defined Atom Stereocenter Count |
8
|
| SMILES |
C([2H])([2H])([2H])C([2H])(C([2H])([2H])[2H])CCC[C@@H](C)[C@H]1CC[C@H]2[C@H]3[C@H](CC[C@]12C)[C@@]4(C)CC[C@@H](CC4=CC3=O)O
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| InChi Key |
YIKKMWSQVKJCOP-KVZGVLACSA-N
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| InChi Code |
InChI=1S/C27H44O2/c1-17(2)7-6-8-18(3)21-9-10-22-25-23(12-14-27(21,22)5)26(4)13-11-20(28)15-19(26)16-24(25)29/h16-18,20-23,25,28H,6-15H2,1-5H3/t18-,20+,21-,22+,23+,25+,26+,27-/m1/s1/i1D3,2D3,17D
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| Chemical Name |
(3S,8S,9S,10R,13R,14S,17R)-3-hydroxy-10,13-dimethyl-17-[(2R)-6,7,7,7-tetradeuterio-6-(trideuteriomethyl)heptan-2-yl]-1,2,3,4,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-7-one
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| HS Tariff Code |
2934.99.9001
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| 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)
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| 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
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|---|---|
| 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
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *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 : PEG300 ：Tween 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). View More
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)] 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). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.4529 mL | 12.2645 mL | 24.5290 mL | |
| 5 mM | 0.4906 mL | 2.4529 mL | 4.9058 mL | |
| 10 mM | 0.2453 mL | 1.2265 mL | 2.4529 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.
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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