1. Anti-infection Metabolic Enzyme/Protease
  2. HCV Protease HCV SARS-CoV
  3. Grazoprevir

Grazoprevir (MK-5172) is a selective inhibitor of Hepatitis C virus NS3/4a protease with broad activity across genotypes and resistant variants, with Kis of 0.01 nM (gt1b), 0.01 nM (gt1a), 0.08 nM (gt2a), 0.15 nM (gt2b), 0.90 nM (gt3a), respectively. Grazoprevir inhibits SARS-CoV-2 3CLpro activity.

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

CAS No. : 1350514-68-9

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Customer Review

Based on 29 publication(s) in Google Scholar

Other Forms of Grazoprevir:

Top Publications Citing Use of Products
ELISA
Cell Proliferation/Viability Assay
In Vivo Imaging
In Vivo Efficacy Study

    Grazoprevir purchased from MedChemExpress. Usage Cited in: Cancer Cell. 2022 Nov 14;40(11):1294-1305.e4.  [Abstract]

    Primary T cell lines were treated with or without Grazoprevir (all in the presence of target cells), and cytokine levels quantified.

    Grazoprevir purchased from MedChemExpress. Usage Cited in: Cancer Cell. 2022 Nov 14;40(11):1294-1305.e4.  [Abstract]

    Cytotoxicity response of OFF VIPER CAR T cells to Grazoprevir being added, washed out, and re-introduced after two days.

    Grazoprevir purchased from MedChemExpress. Usage Cited in: Cancer Cell. 2022 Nov 14;40(11):1294-1305.e4.  [Abstract]

    Grazoprevir dose-response profile of various cells, as measured in cytokine levels and cell killing.

    Grazoprevir purchased from MedChemExpress. Usage Cited in: Cancer Cell. 2022 Nov 14;40(11):1294-1305.e4.  [Abstract]

    IVIS imaging of groups treated with (1) no T cells, (2) non-transduced T cell (NT-WT), (3) ON VIPER CAR T cells, (4) ON VIPER CAR T cells with Grazoprevir (5) OFF VIPER CAR T cells, (6) OFF VIPER CAR T cells with Grazoprevir, or (7) Traditional CAR T cells by day 21.

    Grazoprevir purchased from MedChemExpress. Usage Cited in: Cancer Cell. 2022 Nov 14;40(11):1294-1305.e4.  [Abstract]

    Illustration of the dual-tumor model generated by systemically growing Nalm6 cells via i.v. and regional growth of MSTO-211H cells via s.c (left). Timeline for the in vivo experiment (right). Inducers (Grazoprevir or POM) were injected daily through i.p.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Grazoprevir (MK-5172) is a selective inhibitor of Hepatitis C virus NS3/4a protease with broad activity across genotypes and resistant variants, with Kis of 0.01 nM (gt1b), 0.01 nM (gt1a), 0.08 nM (gt2a), 0.15 nM (gt2b), 0.90 nM (gt3a), respectively[1][2]. Grazoprevir inhibits SARS-CoV-2 3CLpro activity[3].

    IC50 & Target

    Ki: 0.01±<0.01 nM (gt1b), 0.01±0.01 nM (gt1a), 0.08±0.02 nM (gt2a), 0.15±0.06 nM (gt2b), 0.90±0.2 nM (gt3a)[1]

    Cellular Effect
    Cell Line Type Value Description References
    Huh-7 EC50
    0.2 nM
    Compound: GZR; MK-5172
    Antiviral activity against HCV genotype 1b infected in human Huh7 cells incubated for 96 hrs by luciferase assay
    Antiviral activity against HCV genotype 1b infected in human Huh7 cells incubated for 96 hrs by luciferase assay
    [PMID: 34405680]
    Huh-7 EC50
    0.3 nM
    Compound: MK-5172
    Antiviral activity against HCV genotype 1a infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 1a infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    [PMID: 26819676]
    Huh-7 EC50
    0.3 nM
    Compound: MK-5172
    Antiviral activity against HCV genotype 1b infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 1b infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    [PMID: 26819676]
    Huh-7 EC50
    0.6 nM
    Compound: 1; MK-5172
    Antiviral activity against HCV genotype 1a infected in human HuH7 cells assessed as reduction viral RNA level after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 1a infected in human HuH7 cells assessed as reduction viral RNA level after 72 hrs by RT-PCR method
    [PMID: 27994759]
    Huh-7 EC50
    0.6 nM
    Compound: 1; MK-5172
    Antiviral activity against HCV genotype 1b infected in human HuH7 cells assessed as reduction viral RNA level after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 1b infected in human HuH7 cells assessed as reduction viral RNA level after 72 hrs by RT-PCR method
    [PMID: 27994759]
    Huh-7 EC50
    1.2 nM
    Compound: MK-5172
    Antiviral activity against HCV genotype 2a infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 2a infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    [PMID: 26819676]
    Huh-7 EC50
    1.5 nM
    Compound: MK-5172
    Antiviral activity against Hepatitis C virus genotype 1b infected in HuH7 cells assessed as reduction in replicon RNA level after 72 hrs by TaqMan-based RT-PCR analysis in presence of 10% FBS
    Antiviral activity against Hepatitis C virus genotype 1b infected in HuH7 cells assessed as reduction in replicon RNA level after 72 hrs by TaqMan-based RT-PCR analysis in presence of 10% FBS
    [PMID: 24900818]
    Huh-7 EC50
    12 nM
    Compound: GZR; MK-5172
    Antiviral activity against HCV genotype 1b harboring D168A mutant infected in human Huh7 cells incubated for 96 hrs by luciferase assay
    Antiviral activity against HCV genotype 1b harboring D168A mutant infected in human Huh7 cells incubated for 96 hrs by luciferase assay
    [PMID: 34405680]
    Huh-7 EC50
    13 nM
    Compound: MK-5172
    Antiviral activity against Hepatitis C virus genotype 3a infected in HuH7 cells assessed as reduction in replicon RNA level after 72 hrs by TaqMan-based RT-PCR analysis in presence of 10% FBS
    Antiviral activity against Hepatitis C virus genotype 3a infected in HuH7 cells assessed as reduction in replicon RNA level after 72 hrs by TaqMan-based RT-PCR analysis in presence of 10% FBS
    [PMID: 24900818]
    Huh-7 EC50
    261 nM
    Compound: GZR; MK-5172
    Antiviral activity against HCV genotype 1b harboring A156T mutant infected in human Huh7 cells incubated for 96 hrs by luciferase assay
    Antiviral activity against HCV genotype 1b harboring A156T mutant infected in human Huh7 cells incubated for 96 hrs by luciferase assay
    [PMID: 34405680]
    Huh-7 EC50
    5 nM
    Compound: MK-5172
    Antiviral activity against HCV genotype 2b infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 2b infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    [PMID: 26819676]
    Huh-7 EC50
    5.4 nM
    Compound: 1; MK-5172
    Antiviral activity against HCV genotype 2a infected in human HuH7 cells assessed as reduction viral RNA level after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 2a infected in human HuH7 cells assessed as reduction viral RNA level after 72 hrs by RT-PCR method
    [PMID: 27994759]
    Huh-7 EC50
    7.2 nM
    Compound: 1; MK-5172
    Antiviral activity against HCV genotype 3a infected in human HuH7 cells assessed as reduction viral RNA level after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 3a infected in human HuH7 cells assessed as reduction viral RNA level after 72 hrs by RT-PCR method
    [PMID: 27994759]
    Huh-7 EC50
    7.2 nM
    Compound: MK-5172
    Antiviral activity against HCV genotype 3a infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    Antiviral activity against HCV genotype 3a infected in human HuH7 cells assessed as inhibition of viral replication after 72 hrs by RT-PCR method
    [PMID: 26819676]
    Huh-7 IC50
    7 nM
    Compound: 15, MK-5172
    Antiviral activity against Hepatitis C virus genotype 1a infected in human HuH7 cells assessed as inhibition of viral replication after 24 hrs presence of 40% NHS
    Antiviral activity against Hepatitis C virus genotype 1a infected in human HuH7 cells assessed as inhibition of viral replication after 24 hrs presence of 40% NHS
    [PMID: 24900473]
    Huh-7 IC50
    7.4 nM
    Compound: 15, MK-5172
    Antiviral activity against Hepatitis C virus (isolate Con1) genotype 1b infected in human HuH7 cells assessed as inhibition of viral replication after 24 hrs in presence of 50% NHS
    Antiviral activity against Hepatitis C virus (isolate Con1) genotype 1b infected in human HuH7 cells assessed as inhibition of viral replication after 24 hrs in presence of 50% NHS
    [PMID: 24900473]
    In Vitro

    In biochemical assays, Grazoprevir (MK-5172) is effective against a panel of major genotypes and variants engineered with common resistant mutations, with Ki of 0.01±<0.01 nM (gt1b), 0.01±0.01 nM (gt1a), 0.08±0.02 nM (gt2a), 0.15±0.06 nM (gt2b), 0.90±0.2 nM (gt3a), 0.07±0.01 nM (gt1bR155K), 0.14±0.03 nM (gt1bD168V), 0.30±0.04 nM (gt1bD168Y), 5.3±0.9 nM (gt1bA156T), and 12±2 nM (gt1bA156V), respectively. In the replicon assay, Grazoprevir demonstrates subnanomolar to low-nanomolar EC50s against genotypes 1a, 1b, and 2a, with EC50s of 0.5±0.1 nM, 2±1 nM, and 2±1 nM for gt1bcon1, gt1a, and gt2a, respectively. Grazoprevir is potent against a panel of HCV replication mutants NS5A (Y93H) (EC50=0.7±0.3 nM), NS5B nucleosides (S282T) (EC50=0.3±0.1 nM), and NS5B (C316Y) (EC50=0.4±0.2)[1]. Grazoprevir (MK-5172) maintains the excellent potency against the gt 3a enzyme as well as a broad panel of mutant enzymes, has excellent potency in the replicon system [gt1b IC50(50% NHS)=7.4 nM; gt1a IC50(40% NHS)=7 nM], and shows excellent rat liver exposure[2].

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

    In Vivo

    Grazoprevir (MK-5172) demonstrates efficacy in vivo against chronic-HCV-infected chimpanzees[1]. When dosed to dogs, Grazoprevir (MK-5172) shows low clearance of 5 mL/min/kg and a 3 h half-life after iv dosing and has good plasma exposure (AUC=0.4 μM h) after a 1 mg/kg oral dose. Dog liver biopsy studies showed that the liver concentration of Grazoprevir after the 1 mg/kg oral dose is 1.4 μM at the 24 h time point. Similar to its behavior in rats, Grazoprevir demonstrates effective partitioning into liver tissue and maintains high liver concentration, relative to potency, 24 h after oral dosing in dogs[2].

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

    Molecular Weight

    766.90

    Formula

    C38H50N6O9S

    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    COC1=CC2=C(N=C(CCCCC[C@@H]3C[C@H]3OC4=O)C(O[C@H]5CN(C([C@H](C(C)(C)C)N4)=O)[C@H](C(N[C@@]([C@@H]6C=C)(C6)C(NS(C7CC7)(=O)=O)=O)=O)C5)=N2)C=C1

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 1 year
    -20°C 6 months
    Solvent & Solubility
    In Vitro: 

    Ethanol : 66.67 mg/mL (86.93 mM; Need ultrasonic)

    DMSO : 50 mg/mL (65.20 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 1.3040 mL 6.5198 mL 13.0395 mL
    5 mM 0.2608 mL 1.3040 mL 2.6079 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, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

    • Molarity Calculator

    • Dilution Calculator

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

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

    C1

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    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 (3.26 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% Corn Oil

      Solubility: ≥ 2.5 mg/mL (3.26 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:  100% PEG-300

      Solubility: 12.5 mg/mL (16.30 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: 99.90%

    References
    Animal Administration
    [1]

    Rats and Dogs[1]
    Studies are performed in both rats and dogs. For studies in which Grazoprevir is dosed intravenously to rats or dogs, the compound is formulated in polyethylene glycol 200 (PEG200) and administered as a bolus at either 2 mg/kg of body weight (Rats) or 0.5 mg/kg (dog). For oral studies, the crystalline potassium salt of the compound is dosed as a solution in PEG400 at 5 mg/kg (Rats) or 1 mg/kg (dog). For all studies, blood samples are collected in EDTA-containing tubes at appropriate times and plasma is separated by centrifugation and stored at −70°C until analysis. Quantitation of Grazoprevir (MK-5172) levels is conducted by high-performance liquid chromatography/mass spectroscopy (LC/MS/MS) following protein precipitation. Liver samples are obtained from rat studies at the termination of the experiment. For dog, liver biopsy samples (20 μL) are collected following sedation. Tissue samples are homogenized in four volumes of deionized water, and drug concentrations are determined by LC/MS/MS after protein precipitation.

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

    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, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO / Ethanol 1 mM 1.3040 mL 6.5198 mL 13.0395 mL 32.5988 mL
    5 mM 0.2608 mL 1.3040 mL 2.6079 mL 6.5198 mL
    10 mM 0.1304 mL 0.6520 mL 1.3040 mL 3.2599 mL
    15 mM 0.0869 mL 0.4347 mL 0.8693 mL 2.1733 mL
    20 mM 0.0652 mL 0.3260 mL 0.6520 mL 1.6299 mL
    25 mM 0.0522 mL 0.2608 mL 0.5216 mL 1.3040 mL
    30 mM 0.0435 mL 0.2173 mL 0.4347 mL 1.0866 mL
    40 mM 0.0326 mL 0.1630 mL 0.3260 mL 0.8150 mL
    50 mM 0.0261 mL 0.1304 mL 0.2608 mL 0.6520 mL
    60 mM 0.0217 mL 0.1087 mL 0.2173 mL 0.5433 mL
    Ethanol 80 mM 0.0163 mL 0.0815 mL 0.1630 mL 0.4075 mL
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      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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