3-Epiursolic Acid
Based on 1 publication(s) in Google Scholar
3-Epiursolic Acid is a natural triterpenoid and a competitive inhibitor of Cathepsin L, with an IC50 of 6.5 μM and a Ki of 19.5 μM. 3-Epiursolic Acid acts through competitive inhibition of Cathepsin L. 3-Epiursolic Acid can be used in research on Cathepsin L inhibitors and tumor-associated proteases.
For research use only. We do not sell to patients.
- Purity : 99.81%
- CAS No.: 989-30-0
- Formula: C30H48O3
- Molecular Weight:456.70
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) 3-Epiursolic Acid
MoreAll Cathepsin Isoforms
More
Biological Activity
Description
IC50 & Target
[1]|
cathepsin L 19.5 μM (Ki) |
cathepsin L 6.5 μM (IC50) |
In Vitro
3-Epiursolic acid (compound 3) (5 min) is a competitive inhibitor of recombinant human cathepsin L, with an IC50 of 6.5 μM and a Ki of 19.5 μM[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 989-30-0
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Appearance Solid
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Molecular Weight 456.70
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Formula C30H48O3
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Color White to off-white
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SMILES
OC([C@]12[C@]([C@H]([C@H](C)CC2)C)([H])C3=CC[C@@]([C@@]4([C@@](C(C)([C@H](O)CC4)C)([H])CC5)C)([H])[C@]5(C)[C@]3(C)CC1)=O
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Publications (1)
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Journal Impact Factor
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Most Recent
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Viruses
Bovine Parainfluenza Virus Type 3 (BPIV3) Enters HeLa Cells via Clathrin-Mediated Endocytosis in a Cholesterol- and Dynamin-Dependent Manner. [Abstract]2021 May 31;13(6):1035. PMID: 34072688
Solvent & Solubility
In Vitro:
DMSO : 50 mg/mL (109.48 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
In Vivo:
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: 1.25 mg/mL (2.74 mM); Suspended solution; Need ultrasonic
This protocol yields a suspended solution of 1.25 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: 1.25 mg/mL (2.74 mM); Suspended solution; Need ultrasonic
This protocol yields a suspended solution of 1.25 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (275 KB)
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SDS (419 KB)
- English - EN (419 KB)
- Français - FR (419 KB)
- Deutsch - DE (419 KB)
- Norwegian - NO (419 KB)
- Español - ES (419 KB)
- Swedish - SV (419 KB)
- Italian - IT (419 KB)
- Korean - KR (419 KB)
- Portuguese - PT (419 KB)
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Handling Instructions (2659 KB)
References
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
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| DMSO | 1 mM | 2.1896 mL | 10.9481 mL | 21.8962 mL | 54.7405 mL |
| 5 mM | 0.4379 mL | 2.1896 mL | 4.3792 mL | 10.9481 mL | |
| 10 mM | 0.2190 mL | 1.0948 mL | 2.1896 mL | 5.4741 mL | |
| 15 mM | 0.1460 mL | 0.7299 mL | 1.4597 mL | 3.6494 mL | |
| 20 mM | 0.1095 mL | 0.5474 mL | 1.0948 mL | 2.7370 mL | |
| 25 mM | 0.0876 mL | 0.4379 mL | 0.8758 mL | 2.1896 mL | |
| 30 mM | 0.0730 mL | 0.3649 mL | 0.7299 mL | 1.8247 mL | |
| 40 mM | 0.0547 mL | 0.2737 mL | 0.5474 mL | 1.3685 mL | |
| 50 mM | 0.0438 mL | 0.2190 mL | 0.4379 mL | 1.0948 mL | |
| 60 mM | 0.0365 mL | 0.1825 mL | 0.3649 mL | 0.9123 mL | |
| 80 mM | 0.0274 mL | 0.1369 mL | 0.2737 mL | 0.6843 mL | |
| 100 mM | 0.0219 mL | 0.1095 mL | 0.2190 mL | 0.5474 mL |
3-Epiursolic Acid Related Classifications
HY-N4289 Related Classifications
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