Epristeride
Based on 3 publication(s) in Google Scholar
Epristeride (ONO-9302) is a selective, specific and orally active uncompetitive inhibitor of human steroid 5 alpha-reductase isoform 2. Epristeride has inhibitory effects for SR isoenzymes types 2 with Ki value of 0.7-2 nM. Epristeride can be used for the research of prostatic hyperplasia and acne.
For research use only. We do not sell to patients.
- Purity: 99.85%
- CAS No.: 119169-78-7
- Formula: C25H37NO3
- Molecular Weight:399.57
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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) Epristeride
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Biological Activity
Ki: 0.7-2 nM(SR2)[1]
Epristeride has inhibitory effects for SR isoenzymes types 2 (SR2) with Ki values of 0.7-2 nM[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. 119169-78-7
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Appearance Solid
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Molecular Weight 399.57
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Formula C25H37NO3
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Color White to off-white
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SMILES
C[C@@]12[C@](CC[C@@H]2C(NC(C)(C)C)=O)([H])[C@@]3([H])[C@]([C@@]4(C(C=C(C(O)=O)CC4)=CC3)C)([H])CC1
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Synonyms
ONO-9302; SKF105657
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Publications (3)
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Journal Impact Factor
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Most Recent
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Int J Mol Sci
2025 Jan 28;26(3):1141. PMID: 39940909 -
Asian J Androl
Inhibition of 5αR2 promotes postoperative wound repair in BPH patients after TURP by alleviating fibrosis and inflammation. [Abstract]2025 Oct 28. PMID: 41147439 -
Drug Test Anal
Identification of Metabolites for the Novel 5α-Reductase Inhibitor Epristeride In Vitro and Its Potential Impact on Doping Testing. [Abstract]2025 Nov 16. PMID: 41242714
Solvent & Solubility
DMSO : 100 mg/mL (250.27 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. 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. 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)
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: 2.5 mg/mL (6.26 mM); Suspended solution; Need ultrasonic
This protocol yields a suspended solution of 2.5 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 (25.0 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: ≥ 2.5 mg/mL (6.26 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
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.
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 (274 KB)
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SDS (254 KB)
- English - EN (254 KB)
- Français - FR (254 KB)
- Deutsch - DE (254 KB)
- Norwegian - NO (254 KB)
- Español - ES (254 KB)
- Swedish - SV (254 KB)
- Italian - IT (254 KB)
- Korean - KR (254 KB)
- Portuguese - PT (254 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. 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 |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.5027 mL | 12.5135 mL | 25.0269 mL | 62.5673 mL |
| 5 mM | 0.5005 mL | 2.5027 mL | 5.0054 mL | 12.5135 mL | |
| 10 mM | 0.2503 mL | 1.2513 mL | 2.5027 mL | 6.2567 mL | |
| 15 mM | 0.1668 mL | 0.8342 mL | 1.6685 mL | 4.1712 mL | |
| 20 mM | 0.1251 mL | 0.6257 mL | 1.2513 mL | 3.1284 mL | |
| 25 mM | 0.1001 mL | 0.5005 mL | 1.0011 mL | 2.5027 mL | |
| 30 mM | 0.0834 mL | 0.4171 mL | 0.8342 mL | 2.0856 mL | |
| 40 mM | 0.0626 mL | 0.3128 mL | 0.6257 mL | 1.5642 mL | |
| 50 mM | 0.0501 mL | 0.2503 mL | 0.5005 mL | 1.2513 mL | |
| 60 mM | 0.0417 mL | 0.2086 mL | 0.4171 mL | 1.0428 mL | |
| 80 mM | 0.0313 mL | 0.1564 mL | 0.3128 mL | 0.7821 mL | |
| 100 mM | 0.0250 mL | 0.1251 mL | 0.2503 mL | 0.6257 mL |
Epristeride Related Classifications
HY-107385 Related Classifications
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