2. Anti-infection
  3. SARS-CoV Influenza Virus
  4. Molnupiravir

Molnupiravir  (Synonyms: EIDD-2801; MK-4482)

Cat. No.: HY-135853 Purity: 99.93%
COA Handling Instructions

Molarity Calculator

Molnupiravir (EIDD-2801) is an orally bioavailable proagent of the ribonucleoside analog EIDD-1931. Molnupiravir has broad spectrum antiviral activity against influenza virus and multiple coronaviruses, such as SARS-CoV-2, MERS-CoV, SARS-CoV. Molnupiravir has the potential for the research of COVID-19, and seasonal and pandemic influenza.

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

Molnupiravir Chemical Structure

Molnupiravir Chemical Structure

CAS No. : 2492423-29-5

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Customer Review

Based on 47 publication(s) in Google Scholar

Other Forms of Molnupiravir:

Molnupiravir Related Antibodies

Top Publications Citing Use of Products

47 Publications Citing Use of MCE Molnupiravir

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Molnupiravir (EIDD-2801) is an orally bioavailable proagent of the ribonucleoside analog EIDD-1931. Molnupiravir has broad spectrum antiviral activity against influenza virus and multiple coronaviruses, such as SARS-CoV-2, MERS-CoV, SARS-CoV. Molnupiravir has the potential for the research of COVID-19, and seasonal and pandemic influenza[1][2].

In Vivo

Molnupiravir (50-500 mg/kg; p.o.; every 12 hours for 3 days) is robustly antiviral and able to prevent SARS-CoV replication and disease[1].
Molnupiravir (7 mg/kg; p.o.; twice daily for 3.5 days) significantly reduces shed virus load and duration of fever[2].

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

Animal Model: C57BL/6 mice (intranasal infection with SARS-CoV)[1]
Dosage: 50, 150, 500 mg/kg
Administration: Oral; every 12 hours for 3 days
Result: Body weight loss is significantly diminished or prevented.
Animal Model: Ca/09-infected female ferrets[1]
Dosage: 7 mg/kg
Administration: Oral; twice daily for 3.5 days
Result: Shed virus load and duration of fever were significantly reduced.
Clinical Trial
Molecular Weight

329.31

Formula

C13H19N3O7
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(N([C@@]1([H])[C@H](O)[C@H](O)[C@@]([H])(COC(C(C)C)=O)O1)C=C2)NC2=NO
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 : 50 mg/mL (151.83 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 12.5 mg/mL (37.96 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.0367 mL 15.1833 mL 30.3665 mL
5 mM 0.6073 mL 3.0367 mL 6.0733 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.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • 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 (7.59 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 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 (7.59 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.

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: 25 mg/mL (75.92 mM); Clear solution; Need ultrasonic

  • Protocol 2

    Add each solvent one by one:  10% PEG400    2.5% Ethoxylated hydrogenated castor oil    87.5% Water

    Solubility: 12.05 mg/mL (36.59 mM); Clear 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: 99.94%

COA (253 KB) LCMS (92 KB) Elemental Analysis Report (110 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
H2O / DMSO 1 mM 3.0367 mL 15.1833 mL 30.3665 mL 75.9163 mL
5 mM 0.6073 mL 3.0367 mL 6.0733 mL 15.1833 mL
10 mM 0.3037 mL 1.5183 mL 3.0367 mL 7.5916 mL
15 mM 0.2024 mL 1.0122 mL 2.0244 mL 5.0611 mL
20 mM 0.1518 mL 0.7592 mL 1.5183 mL 3.7958 mL
25 mM 0.1215 mL 0.6073 mL 1.2147 mL 3.0367 mL
30 mM 0.1012 mL 0.5061 mL 1.0122 mL 2.5305 mL
DMSO 40 mM 0.0759 mL 0.3796 mL 0.7592 mL 1.8979 mL
50 mM 0.0607 mL 0.3037 mL 0.6073 mL 1.5183 mL
60 mM 0.0506 mL 0.2531 mL 0.5061 mL 1.2653 mL
80 mM 0.0380 mL 0.1898 mL 0.3796 mL 0.9490 mL
100 mM 0.0304 mL 0.1518 mL 0.3037 mL 0.7592 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Molnupiravir 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:

Molnupiravir2492423-29-5EIDD-2801 MK-4482EIDD2801EIDD 2801MK4482MK 4482MK-4482SARS-CoVInfluenza VirusSARS coronavirusorallyinfluenzavirusfeverlungferretsseasonalpandemicinfectionscoronavirusesCOVID-19Inhibitorinhibitorinhibit

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