1. Immunology/Inflammation
  2. Toll-like Receptor (TLR)
  3. Enpatoran hydrochloride

Enpatoran hydrochloride  (Synonyms: M5049 hydrochloride)

Cat. No.: HY-134581A Purity: 99.33% ee.: 98.06%
COA Handling Instructions

Enpatoran (M5049) hydrochloride is a potent, orally active and dual TLR7/8 inhibitor with IC50s of 11.1 nM and 24.1 nM in HEK293 cells, respectively. Enpatoran hydrochloride is inactive against TLR3, TLR4 and TLR9. Enpatoran hydrochloride can block molecule synthetic ligands and natural endogenous RNA ligands. Enpatoran hydrochloride exhibits excellent pharmacokinetic properties in vivo. Enpatoran hydrochloride can be used for both innate and adaptive autoimmunity blocking research.

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

Enpatoran hydrochloride Chemical Structure

Enpatoran hydrochloride Chemical Structure

CAS No. : 2101945-93-9

Size Price Stock Quantity
Solid + Solvent
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
1 mg USD 150 In-stock
5 mg USD 300 In-stock
10 mg USD 450 In-stock
25 mg USD 770 In-stock
50 mg USD 1150 In-stock
100 mg USD 1680 In-stock
200 mg USD 2450 In-stock
500 mg   Get quote  
1 g   Get quote  

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Customer Review

Based on 3 publication(s) in Google Scholar

Other Forms of Enpatoran hydrochloride:

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Description

Enpatoran (M5049) hydrochloride is a potent, orally active and dual TLR7/8 inhibitor with IC50s of 11.1 nM and 24.1 nM in HEK293 cells, respectively. Enpatoran hydrochloride is inactive against TLR3, TLR4 and TLR9. Enpatoran hydrochloride can block molecule synthetic ligands and natural endogenous RNA ligands. Enpatoran hydrochloride exhibits excellent pharmacokinetic properties in vivo. Enpatoran hydrochloride can be used for both innate and adaptive autoimmunity blocking research[1].

IC50 & Target[1]

TLR7

11.1 nM (IC50)

TLR8

24.1 nM (IC50)

In Vitro

Enpatoran hydrochloride (0.01 nM-10 μM) inhibits production of IL-6 stimulated by all the ligands (miR-122, Let7c RNA, Alu RNA, and R848) with IC50 values ranging from 35 to 45 nM[1].

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

In Vivo

Pre-treatment with Enpatoran hydrochloride (oral gavage; 1 mg/kg) before R848 (intraperitoneal injection of 25 µg) dose-dependently inhibits the production of IL-6 and IFN-α in mice[1].
Enpatoran hydrochloride exhibits high oral bioavailability (mouse 100%, rat 87%, dog 84%) following oral administration (mouse, rat and dog 1.0 mg/kg)[1].
Enpatoran hydrochloride exhibits moderate half-lives (mouse 1.4, rat 5.0 and dog 13 h) due to high plasma clearance (1.4, 1.2 and 0.59 L/h/kg, respectively) combined with large volumes of distribution (2.7, 8.7 and 5.7 L/kg, respectively) following intravenous administration (mouse, rat and dog 1.0 mg/kg)[1].

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

Animal Model: Female C57BL/6 mice[1]
Dosage: 0.1 mg/kg and 1 mg/kg
Administration: Oral gavage; administered 1 hour prior to R848 challenge
Result: The TLR7/8 agonist R848 stimulated both IFN-α and IL-6 production in mice.
Enpatoran hydrochloride decreased IFN-α and IL-6 production stimulated by R848.
Clinical Trial
Molecular Weight

356.77

Formula

C16H16ClF3N4

CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

[H]Cl.N#CC(C=C1)=C(N=CC=C2)C2=C1N3C[C@@H](C(F)(F)F)C[C@@H](N)C3

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

Solvent & Solubility
In Vitro: 

DMSO : 16.67 mg/mL (46.72 mM; ultrasonic and warming and heat to 60°C; 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 2.8029 mL 14.0146 mL 28.0293 mL
5 mM 0.5606 mL 2.8029 mL 5.6059 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 (sealed storage, away from moisture and light). 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
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Concentration
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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

×
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 mg/mL (5.61 mM); Clear solution; Need ultrasonic

    This protocol yields a clear solution of 2 mg/mL.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.0 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 mg/mL (5.61 mM); Clear solution; Need ultrasonic

    This protocol yields a clear solution of 2 mg/mL.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.0 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).

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

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: 99.33% ee.: 98.06%

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 (sealed storage, away from moisture and 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
DMSO 1 mM 2.8029 mL 14.0146 mL 28.0293 mL 70.0732 mL
5 mM 0.5606 mL 2.8029 mL 5.6059 mL 14.0146 mL
10 mM 0.2803 mL 1.4015 mL 2.8029 mL 7.0073 mL
15 mM 0.1869 mL 0.9343 mL 1.8686 mL 4.6715 mL
20 mM 0.1401 mL 0.7007 mL 1.4015 mL 3.5037 mL
25 mM 0.1121 mL 0.5606 mL 1.1212 mL 2.8029 mL
30 mM 0.0934 mL 0.4672 mL 0.9343 mL 2.3358 mL
40 mM 0.0701 mL 0.3504 mL 0.7007 mL 1.7518 mL
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Enpatoran hydrochloride 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.

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Enpatoran hydrochloride
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