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

Finasteride (MK-906) is an orally active and competitive 5α-reductase inhibitor, with an IC50 of 4.2 nM for type II 5α-reductase. Finasteride has approximately a 100-fold greater affinity for type II 5α-reductase enzyme than for the type I enzyme. Finasteride can be used for the research of benign prostatic hyperplasia (BPH) and androgenic alopecia.

For research use only. We do not sell to patients.

Finasteride Chemical Structure

Finasteride Chemical Structure

CAS No. : 98319-26-7

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 66 In-stock
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10 mM * 1 mL in DMSO USD 66 In-stock
Solid
100 mg USD 60 In-stock
200 mg USD 96 In-stock
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Customer Review

Based on 4 publication(s) in Google Scholar

Other Forms of Finasteride:

Finasteride Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Finasteride (MK-906) is an orally active and competitive 5α-reductase inhibitor, with an IC50 of 4.2 nM for type II 5α-reductase. Finasteride has approximately a 100-fold greater affinity for type II 5α-reductase enzyme than for the type I enzyme. Finasteride can be used for the research of benign prostatic hyperplasia (BPH) and androgenic alopecia[1][2][3].

IC50 & Target

IC50: 4.2 nM (type II 5α-reductase)[1]
In Vitro

Finasteride (10 μM; 6-24 h) induces the expression of HO-1 and Nrf2 proteins in PC-3 cells[2].
Finasteride decreases the conversion of [3H]testosterone (T) to [3H]dihydrotestosterone (DHT) in P. crustosum[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Finasteride Related Antibodies

Western Blot Analysis[2]

Cell Line: PC-3, DU-145, and LNCaP cells
Concentration: 10 μM
Incubation Time: 6, 12, 24 h
Result: Increased the expression of HO-1 protein in a time-dependent manner in PC-3 cells.
Induced the expression of Nrf2 protein in DU-145 and PC-3 cells, but not in LNCaP cells.
In Vivo

Finasteride (0.1-0.5 mg/kg; p.o. once daily for 16 weeks) reduces prostatic size in dogs with BPH without adversely affecting semen quality or serum testosterone concentration[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Male dogs with spontaneous BPH (2.7-11 years old; 10.3-49 kg)[3]
Dosage: 0.1-0.5 mg/kg
Administration: P.o. once daily for 16 weeks
Result: Decreased prostatic diameter (20%), prostatic volume (43%), and serum DHT concentration (58%).
Decreased semen volume but did not adversely effect on semen quality or serum testosterone concentration.
No adverse effects on dogs.
Clinical Trial
Molecular Weight

372.54

Formula

C23H36N2O2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C([C@H]1CC[C@]2([H])[C@]1(C)CC[C@]3([H])[C@@]4(C)C=CC(N[C@]4([H])CC[C@]32[H])=O)NC(C)(C)C
Shipping

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

DMSO : 150 mg/mL (402.64 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 2.6843 mL 13.4214 mL 26.8428 mL
5 mM 0.5369 mL 2.6843 mL 5.3686 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
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Volume
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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

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Concentration (final)

C2

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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    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (6.71 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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (6.71 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  50% PEG300    50% Saline

    Solubility: 2 mg/mL (5.37 mM); Suspended solution; Need ultrasonic

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: 99.97%

COA (254 KB) LCMS (95 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.6843 mL 13.4214 mL 26.8428 mL 67.1069 mL
5 mM 0.5369 mL 2.6843 mL 5.3686 mL 13.4214 mL
10 mM 0.2684 mL 1.3421 mL 2.6843 mL 6.7107 mL
15 mM 0.1790 mL 0.8948 mL 1.7895 mL 4.4738 mL
20 mM 0.1342 mL 0.6711 mL 1.3421 mL 3.3553 mL
25 mM 0.1074 mL 0.5369 mL 1.0737 mL 2.6843 mL
30 mM 0.0895 mL 0.4474 mL 0.8948 mL 2.2369 mL
40 mM 0.0671 mL 0.3355 mL 0.6711 mL 1.6777 mL
50 mM 0.0537 mL 0.2684 mL 0.5369 mL 1.3421 mL
60 mM 0.0447 mL 0.2237 mL 0.4474 mL 1.1184 mL
80 mM 0.0336 mL 0.1678 mL 0.3355 mL 0.8388 mL
100 mM 0.0268 mL 0.1342 mL 0.2684 mL 0.6711 mL
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Finasteride 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:

Finasteride98319-26-7MK-906MK906MK 9065 alpha Reductase5α-reductasetypeIIbenignprostatichyperplasiaBPHandrogenicalopeciaInhibitorinhibitorinhibit

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