2. Metabolic Enzyme/Protease
  3. 5 alpha Reductase
  4. Epristeride

Epristeride  (Synonyms: ONO-9302; SKF105657)

Cat. No.: HY-107385 Purity: 99.96%
COA Handling Instructions

Molarity Calculator

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.

Epristeride Chemical Structure

Epristeride Chemical Structure

CAS No. : 119169-78-7

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 330 In-stock
Solution
10 mM * 1 mL in DMSO USD 330 In-stock
Solid
5 mg USD 300 In-stock
10 mg USD 480 In-stock
25 mg USD 960 In-stock
50 mg   Get quote  
100 mg   Get quote  

* Please select Quantity before adding items.

This product is a controlled substance and not for sale in your territory.

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Based on 1 publication(s) in Google Scholar

Epristeride Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

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[1].

IC50 & Target

Ki: 0.7-2 nM(SR2)[1]
In Vitro

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.

Epristeride Related Antibodies
Molecular Weight

399.57

Formula

C25H37NO3
CAS No.
Appearance

Solid

Color

White to off-white

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
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

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)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.5027 mL 12.5135 mL 25.0269 mL
5 mM 0.5005 mL 2.5027 mL 5.0054 mL
View the 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.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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.

  • Protocol 1

    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.
  • Protocol 2

    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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
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

Purity: 99.96%

COA (250 KB) HNMR (219 KB) LCMS (394 KB)

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
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Epristeride Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Epristeride119169-78-7ONO-9302 SKF105657ONO9302ONO 9302SKF105657SKF 105657SKF-1056575 alpha Reductase5α-reductaseoralsteroid 5 alpha-reductase isoform 2SR2prostatic hyperplasiaacneInhibitorinhibitorinhibit

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