Merbromin
Merbromin is a mixed inhibitor of the 3-chymotrypsin-like protease (3CLpro) of SARS-CoV-2, with an IC50 of 2.7 μM. Merbromin effectively inhibits the replication of the Zika virus (ZIKV) and shows anti-ZIKV activity by inhibiting ZIKVpro. Merbromin can also be used as a topical disinfectant for cuts and scrapes, and it serves as a biological dye.
For research use only. We do not sell to patients.
- CAS No.: 129-16-8
- Formula: C20H10Br2HgNa2O6
- Molecular Weight:752.67
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Storage:
4°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)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
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3CLpro 2.7 μM (IC50) |
Merbromin (0-10 μM) affects both the KM and Kcat of 3CLpro, where the KM value increases from 9.02 μM to 14.28 μM, and the Kcat value decreases from 1.45 min to 0.63 min[1].
Merbromin with the KD for 3CLpro is 0.23 μM[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 129-16-8
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Appearance Solid
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Molecular Weight 752.67
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Formula C20H10Br2HgNa2O6
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Color Brown to breen
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SMILES
O[Hg]C1=C(O[Na])C(Br)=CC(C2C3=C(C=CC=C3)C(O[Na])=O)=C1OC4=C2C=C(Br)C(O)=C4
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Synonyms
Mercury dibromofluorescein disodium salt; ZP1
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°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
DMSO : 6.67 mg/mL (8.86 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : 5.83 mg/mL (7.75 mM; Need ultrasonic)
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.
* 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.
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.
* 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.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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.
Working solution concentration: 0.22 mg/mL
Purity & Documentation
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Data Sheet (280 KB)
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SDS (788 KB)
- English - EN (788 KB)
- Français - FR (788 KB)
- Deutsch - DE (788 KB)
- Norwegian - NO (788 KB)
- Español - ES (788 KB)
- Swedish - SV (788 KB)
- Italian - IT (788 KB)
- Portuguese - PT (788 KB)
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Handling Instructions (2659 KB)
References
[1]. Xiangling Cui , et al. Identification of Theaflavin-3,3'-Digallate as a Novel Zika Virus Protease Inhibitor. Front Pharmacol. 2020 Oct 21;11:514313. [Content Brief]
[2]. Junjie Chen, et al. Merbromin is a mixed-type inhibitor of 3-chyomotrypsin like protease of SARS-CoV-2. Biochem Biophys Res Commun. 2022 Feb 5:591:118-123. [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, 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 |
|---|---|---|---|---|---|
| H2O / DMSO | 1 mM | 1.3286 mL | 6.6430 mL | 13.2860 mL | 33.2151 mL |
| 5 mM | 0.2657 mL | 1.3286 mL | 2.6572 mL | 6.6430 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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