Maribavir
Based on 14 publication(s) in Google Scholar
Maribavir is a potent inhibitor of histone phosphorylation catalyzed by wild-type pUL97 in vitro, with an IC50 of 3 nM. Maribavir has potent antiviral activity against HCMV and Epstein-Barr virus (EBV).
For research use only. We do not sell to patients.
- Purity: 99.96%
- CAS No.: 176161-24-3
- Formula: C15H19Cl2N3O4
- Molecular Weight:376.24
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocol
- Purity & Documentation
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) Maribavir
More- Pharmaceutics. 2024 Jan 23;16(2):158. [Abstract]
- Pharmaceutics. 2023 Nov 27;15(12):2680. [Abstract]
- Cells. 2023 Apr 14;12(8):1162. [Abstract]
- Int J Mol Sci. 2023 Dec 13;24(24):17421. [Abstract]
- Int J Mol Sci. 2022 Feb 24;23(5):2493. [Abstract]
- Int J Mol Sci. 2021 Jan 8;22(2):575. [Abstract]
- Antimicrob Agents Chemother. 2020 Dec 16;65(1):e01627-20. [Abstract]
- Antiviral Res. 2025 Dec 19:246:106335. [Abstract]
- Antiviral Res. 2024 Feb:222:105792. [Abstract]
- J Biol Chem. 2022 Nov;298(11):102513. [Abstract]
- J Biol Chem. 2019 Apr 12;294(15):6188-6203. [Abstract]
- Viruses. 2022 Oct 17;14(10):2285. [Abstract]
- PLoS One. 2020 Apr 30;15(4):e0232140. [Abstract]
- bioRxiv. 2026 May 4.
Customer Validation & Images
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Biological Activity
HCMV[1]
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| Vero C1008 | IC50 |
665 μM
Compound: Maribavir
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Antiviral activity against HSV1 L2 infected in African green monkey Vero E6 cells assessed as reduction in virus-induced cytopathic effect
Antiviral activity against HSV1 L2 infected in African green monkey Vero E6 cells assessed as reduction in virus-induced cytopathic effect
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[PMID: 28408228] |
Maribavir is a potent inhibitor of the autophosporylation of the wild type and all the major Ganciclovir (GCV) resistant UL97 mutants analysed with a mean IC50 of 35 nM. The M460I mutation results in hypersensitivity to Maribavir with an IC50 of 4.8 nM. A Maribavir resistant mutant of UL97 (L397R) is functionally compromised as both a Ganciclovir kinase and a protein kinase (~ 10% of wild type levels). Enzyme kinetic experiments demonstrate that Maribavir is a competitive inhibitor of ATP with a Ki of 10 nM[1]. Maribavir (1263W94) inhibits viral replication in a dose-dependent manner, with IC50 of 0.12±0.01 μM as measured by a multicycle DNA hybridization assay. The pUL97 protein kinase is strongly inhibited by Maribavir, with 50% inhibition occurring at 3 nM[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
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|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 176161-24-3
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Appearance Solid
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Molecular Weight 376.24
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Formula C15H19Cl2N3O4
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Color White to off-white
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SMILES
ClC1=C(Cl)C=C2C(N=C(NC(C)C)N2[C@@H]3[C@@H](O)[C@@H](O)[C@H](CO)O3)=C1
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Synonyms
1263W94; BW1263W94; GW257406X
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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 2 years -20°C 1 year
Publications (14)
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Journal Impact Factor
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Most Recent
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Pharmaceutics
An Antiherpesviral Host-Directed Strategy Based on CDK7 Covalently Binding Drugs: Target-Selective, Picomolar-Dose, Cross-Virus Reactivity. [Abstract]2024 Jan 23;16(2):158. PMID: 38399219 -
Pharmaceutics
Combined Treatment with Host-Directed and Anticytomegaloviral Kinase Inhibitors: Mechanisms, Synergisms and Drug Resistance Barriers. [Abstract]2023 Nov 27;15(12):2680. PMID: 38140021 -
Cells
Assessment of Covalently Binding Warhead Compounds in the Validation of the Cytomegalovirus Nuclear Egress Complex as an Antiviral Target. [Abstract]2023 Apr 14;12(8):1162. PMID: 37190072 -
Int J Mol Sci
The Interactive Complex between Cytomegalovirus Kinase vCDK/pUL97 and Host Factors CDK7-Cyclin H Determines Individual Patterns of Transcription in Infected Cells. [Abstract]2023 Dec 13;24(24):17421. PMID: 38139252 -
Int J Mol Sci
Cyclin-Dependent Kinases (CDKs) and the Human Cytomegalovirus-Encoded CDK Ortholog pUL97 Represent Highly Attractive Targets for Synergistic Drug Combinations. [Abstract]2022 Feb 24;23(5):2493. PMID: 35269635 -
Int J Mol Sci
Combinatorial Drug Treatments Reveal Promising Anticytomegaloviral Profiles for Clinically Relevant Pharmaceutical Kinase Inhibitors (PKIs). [Abstract]2021 Jan 8;22(2):575. PMID: 33430060 -
Antimicrob Agents Chemother
Investigational Antiviral Therapy Models for the Prevention and Treatment of Congenital Cytomegalovirus Infection during Pregnancy. [Abstract]2020 Dec 16;65(1):e01627-20. PMID: 33077661 -
Antiviral Res
The phospho-dynamics of cytomegalovirus capsid interaction, with its protein kinase and nuclear egress complex, provide an antiviral targeting concept. [Abstract]2025 Dec 19:246:106335. PMID: 41423063 -
Antiviral Res
Ganciclovir and maribavir cross-resistance revisited: Relative drug susceptibilities of canonical cytomegalovirus mutants. [Abstract]2024 Feb:222:105792. PMID: 38163624 -
J Biol Chem
Serine 13 of the human cytomegalovirus viral cyclin-dependent kinase UL97 is required for regulatory protein 14-3-3 binding and UL97 stability. [Abstract]2022 Nov;298(11):102513. PMID: 36150501 -
J Biol Chem
Cyclins B1, T1, and H differ in their molecular mode of interaction with cytomegalovirus protein kinase pUL97. [Abstract]2019 Apr 12;294(15):6188-6203. PMID: 30782840
Maribavir purchased from MedChemExpress. Usage Cited in: J Biol Chem. 2019 Apr 12;294(15):6188-6203. [Abstract]
Total cell lysates are subjected to CoIP and IVKA. Each IVKA reaction is supplemented by addition of either CDK7-cylin-H-MAT1 complex (200 ng), Rb-CTF (1 μg), CDK7 inhibitor LDC4297 (1 μM) or pUL97 inhibitor MBV (3 μM) as indicated.
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Viruses
Recombinant Human Cytomegalovirus Expressing an Analog-Sensitive Kinase pUL97 as Novel Tool for Functional Analyses. [Abstract]2022 Oct 17;14(10):2285. PMID: 36298840 -
PLoS One
Placental transfer of Letermovir & Maribavir in the ex vivo human cotyledon perfusion model. New perspectives for in utero treatment of congenital cytomegalovirus infection. [Abstract]2020 Apr 30;15(4):e0232140. PMID: 32353010 -
Solvent & Solubility
DMSO : 200 mg/mL (531.58 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, 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.
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.
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 (6.64 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (6.64 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.
Protocol
Enzyme kinetic analysis is performed on the purified wild type and mutant UL97 protein species using increasing concentrations of ATP (2 μM to 20 μM). The amount of incorporated radiolabelled phosphate is plotted against the concentration of ATP in a Lineweaver Burke plot to determine the Km for ATP for each UL97 species. The effect of Maribavir upon the rate of radiolabelled phosphate incorporation by wild type or mutant UL97 is determined by protein kinase assays at a fixed concentration of Maribavir (0.5 μM) as above, or with increasing concentrations of Maribavir (0.01 μM to 5.0 μM) to determine the IC50 of Maribavir for each UL97 species. In order to determine the nature of the inhibition mediated by Maribavir, plots of 1/v vs 1/ATP with increasing concentrations of Maribavir are constructed. Competitive inhibition is evident if the family of lines cconverged on the y-axis at 1/Vmax. The change in slope caused by the addition of Maribavir is used to calculate the Ki[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
For these studies MRC-5 cells are seeded in 24-well plates at ~5×104 cells/well and grown for 3 days in MEM 8-1-1 to confluence (~1.1×105 cells/well). The cells are infected with AD169 in MEM 2-1-1 at an MOI ranging from 1 to 3 and incubated at 37°C for 90 min to allow viral adsorption. The unadsorbed virus is removed and replaced with 1 mL of MEM 2-1-1. To test the effect of compounds on viral DNA synthesis or maturation, Maribavir, BDCRB, or GCV is added to the medium at the concentrations indicated for each experiment[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (284 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Shannon-Lowe CD, et al. The effects of Maribavir on the autophosphorylation of ganciclovir resistant mutants of the cytomegalovirus UL97 protein. Herpesviridae. 2010 Dec 7;1(1):4. [Content Brief]
[2]. Biron KK, et al. Potent and selective inhibition of human cytomegalovirus replication by 1263W94, a benzimidazole L-riboside with a unique mode of action. Antimicrob Agents Chemother. 2002 Aug;46(8):2365-72. [Content Brief]
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 | 2.6579 mL | 13.2894 mL | 26.5788 mL | 66.4470 mL |
| 5 mM | 0.5316 mL | 2.6579 mL | 5.3158 mL | 13.2894 mL | |
| 10 mM | 0.2658 mL | 1.3289 mL | 2.6579 mL | 6.6447 mL | |
| 15 mM | 0.1772 mL | 0.8860 mL | 1.7719 mL | 4.4298 mL | |
| 20 mM | 0.1329 mL | 0.6645 mL | 1.3289 mL | 3.3223 mL | |
| 25 mM | 0.1063 mL | 0.5316 mL | 1.0632 mL | 2.6579 mL | |
| 30 mM | 0.0886 mL | 0.4430 mL | 0.8860 mL | 2.2149 mL | |
| 40 mM | 0.0664 mL | 0.3322 mL | 0.6645 mL | 1.6612 mL | |
| 50 mM | 0.0532 mL | 0.2658 mL | 0.5316 mL | 1.3289 mL | |
| 60 mM | 0.0443 mL | 0.2215 mL | 0.4430 mL | 1.1074 mL | |
| 80 mM | 0.0332 mL | 0.1661 mL | 0.3322 mL | 0.8306 mL | |
| 100 mM | 0.0266 mL | 0.1329 mL | 0.2658 mL | 0.6645 mL |
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