Lomibuvir (VX-222, VCH-222)

Catalog No.S1480

Lomibuvir (VX-222, VCH-222) Chemical Structure

Molecular Weight(MW): 445.61

Lomibuvir (VX-222, VCH-222) is a novel, potent and selective inhibitor of HCV polymerase with IC50 of 0.94-1.2 μM, 15.3-fold less effective for mutant M423T, and 108-fold less effective for mutant I482L. Phase 2.

Size Price Stock Quantity  
In DMSO USD 300 In stock
USD 170 In stock
USD 320 In stock
USD 970 In stock
Bulk Discount
Bulk Inquiry

Free Overnight Delivery on orders over $ 500
Next day delivery by 10:00 a.m. Order now.

Cited by 6 Publications

1 Customer Review

  • Genetic barriers of JTK-853, NNI-A, PF-868554, VX-222, PSI-6130, BMS-790052, and TMC435 for Con1. VX-222 and the other DAAs were treated at 1/3xEC90 for 17 days.

    Intervirology 2013 56(5), 302-9. Lomibuvir (VX-222, VCH-222) purchased from Selleck.

Purity & Quality Control

Choose Selective HCV Protease Inhibitors

Biological Activity

Description Lomibuvir (VX-222, VCH-222) is a novel, potent and selective inhibitor of HCV polymerase with IC50 of 0.94-1.2 μM, 15.3-fold less effective for mutant M423T, and 108-fold less effective for mutant I482L. Phase 2.
Features A novel, potent and selective inhibitor of non-nucleoside polymerase, specifically the HCV RNA-dependent RNA polymerase.
Targets
HCV NS5B 1a [1] HCV NS5B 1b [1]
0.94 μM 1.2 μM
In vitro

VX-222 binds to the thumb II allosteric pocket of the HCV RNA-dependent RNA polymerase. VX-222 exhibits non-competitive and selective inhibition in HCV NS5B of genotype 1a and 1b, with IC50 of 0.94 and 1.2 μM, respectively. VX-222 selectively inhibits the replication of subgenomic HCV genotype 1a and 1b with an EC50 of 22.3 and 11.2 nM, respectively. [1] Similarly, a recent study shows that VX-222 inhibits the 1b/Con1 HCV subgenomic replicon, with an EC50 of 5 nM. VX-222 preferentially inhibits primer-dependent RNA synthesis, showing only a modest or no effect on de novo-initiated RNA synthesis. [2]

In vivo In rats and dogs, VCH-222 displays fine pharmacokinetic profile, including low total body clearance and excellent oral bioavailability (greater than 30%) and good ADME properties. VCH-222 is biotransformed by several enzymes (CYP1A1, 2A6, 2B6, 2C8, CYP 3A4, UGT1A3) and is predicted to be actively transported in liver and excreted mainly intact in bile or as glucuronide adducts. [3]

Protocol

Kinase Assay:[1]
+ Expand

Anti-NS5B activity assay:

The inhibitory effect of VX-222 on HCV NS5B activity is measured by evaluating the amount of radiolabeled UTP incorporated by the C-terminal ∆21 truncated version of enzyme in a newly synthesized RNA using a homopolymeric RNA template / primer namely poly rA / oligo dT. Quantitative detection of incorporated radioactivity is done using a liquid scintillation counter. The in vitro kinetics of inhibition of HCV NS5B from genotype 1b strain BK by VX-222 are determined using the C-terminal ∆21 truncated version of NS5B. VX-222 (1 to 1.5 μM) is tested in the presence of 10 to 75 μM nonradioactive UTP mixed with 0.89 to 6.70 μCi of [α-33P]-labeled UTP. RNA-dependent-RNA polymerase reactions are allowed to proceed for 18 min at 22 °C.
Cell Research:[2]
+ Expand
  • Cell lines: Huh7.5 cells
  • Concentrations: 0.01 nM -10 μM
  • Incubation Time: 48 hours
  • Method: Huh7.5 cells harboring HCV RNA replicons are trypsinized and plated into 48-well plates at a concentration of 4 × 104 cells/well. The next day the medium is changed and VX-222 is added in 200 μL of complete medium. After 48 hours, total RNA is extracted and viral RNAs are quantified by real-time reverse transcription-PCR (RT-PCR). The effective drug concentrations that reduced HCV RNA replicon levels by 50% (EC50) are calculated by nonlinear regression analysis with log curve fitting.
    (Only for Reference)
Animal Research:[3]
+ Expand
  • Animal Models: Rats or dogs
  • Formulation: Dissolved in 30% PEG
  • Dosages: 5 mg/kg for rats or 10 mg/kg for dogs
  • Administration: By oral gavage
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 89 mg/mL (199.72 mM)
Ethanol 89 mg/mL (199.72 mM)
Water Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
30% PEG400+0.5% Tween80+5% propylene glycol
For best results, use promptly after mixing. 		30 mg/mL

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 445.61
Formula

C25H35NO4S
CAS No. 1026785-59-0
Storage powder
in solvent
Synonyms N/A

Bio Calculators

Molarity Calculator

Molarity Calculator

Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:

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

  • Mass
    Concentration
    Volume
    Molecular Weight

*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).

Dilution Calculator

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

  • C1
    V1
    C2
    V2

* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).

The Serial Dilution Calculator Equation

  • Serial Dilutions

  • Computed Result

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
Molecular Weight Calculator

Molecular Weight Calculator

Enter the chemical formula of a compound to calculate its molar mass and elemental composition:

Total Molecular Weight: g/mol

Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:

To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.

Definitions of molecular mass, molecular weight, molar mass and molar weight:

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT01581138 Completed Chronic Hepatitis C Virus Vertex Pharmaceuticals Incorporated July 2012 Phase 2
NCT01581138 Completed Chronic Hepatitis C Virus Vertex Pharmaceuticals Incorporated July 2012 Phase 2
NCT01516918 Completed Chronic Hepatitis C Virus Vertex Pharmaceuticals Incorporated February 2012 Phase 2
NCT01516918 Completed Chronic Hepatitis C Virus Vertex Pharmaceuticals Incorporated February 2012 Phase 2
NCT01080222 Terminated Chronic Hepatitis C Virus Infection Vertex Pharmaceuticals Incorporated August 2010 Phase 2
NCT01080222 Terminated Chronic Hepatitis C Virus Infection Vertex Pharmaceuticals Incorporated August 2010 Phase 2

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

  • * Indicates a Required Field
selleck catalog

HCV Protease Signaling Pathway Map

Related HCV Protease Products0

  • Ledipasvir (GS5885) New

    Ledipasvir (GS5885) is a HCV NS5A polymerase inhibitor, used for the treatment of hepatitis C virus infection.

  • Calpeptin New

    Calpeptin is a potent, cell-permeable calpain inhibitor with ID50 of 52 nM, 34 nM, 138 nM, and 40 nM for Calpain I (porcine erythrocytes), Calpain II (porcine kidney), Papainb, and Calpain I (human platelets), respectively.

  • Marimastat (BB-2516) New

    Marimastat (BB-2516) is a broad spectrum matrix metalloprotease (MMP) inhibitor for MMP-9, MMP-1, MMP-2, MMP-14 and MMP-7 with IC50 of 3 nM, 5 nM, 6 nM, 9 nM and 13 nM, respectively. Phase 3.

  • Danoprevir (ITMN-191)

    Danoprevir(ITMN-191) is a peptidomimetic inhibitor of the NS3/4A protease of hepatitis C virus (HCV) with IC50 of 0.2-3.5 nM, inhibition effect for HCV genotypes 1A/1B/4/5/6 is ~10-fold higher than 2B/3A. Phase 2.

    Features:A peptidomimetic inhibitor of the NS3/4A protease of hepatitis C virus (HCV).

  • Daclatasvir (BMS-790052)

    Daclatasvir (BMS-790052) is a highly selective inhibitor of HCV NS5A with EC50 of 9-50 pM, for a broad range of HCV replicon genotypes and the JFH-1 genotype 2a infectious virus in cell culture. Phase 3.

    Features:First-in-class, highly selective inhibitor of hepatitis C virus (HCV) NS5A with picomolar EC50 values.

  • Telaprevir (VX-950)

    Telaprevir (VX-950) is an HCV NS3-4A serine protease inhibitor with IC50 of 0.35 μM.

    Features:Telaprevir is a covalent, reversible inhibitor of the NS3-4A protease (unlike BILN 2061which is a noncovalent inhibitor), with a slow-binding and slow-dissociation mechanism.

  • MG-132

    MG132 is a potent cell-permeable proteasome and calpain inhibitor with IC50s of 0.1 and 1.2 μM for the inhibition of proteasome and calpain, respectively.

  • Bortezomib (PS-341)

    Bortezomib (PS-341) is a potent 20S proteasome inhibitor with Ki of 0.6 nM. It exhibits favorable selectivity towards tumor cells over normal cells.

  • Carfilzomib (PR-171)

    Carfilzomib (PR-171) is an irreversible proteasome inhibitor with IC50 of <5 nM in ANBL-6 cells, displayed preferential in vitro inhibitory potency against the ChT-L activity in the β5 subunit, but little or no effect on the PGPH and T-L activities.

  • Ixazomib (MLN2238)

    MLN2238 inhibits the chymotrypsin-like proteolytic (β5) site of the 20S proteasome with IC50 and Ki of 3.4 nM and 0.93 nM in cell-free assays, respectively, also inhibits the caspase-like (β1) and trypsin-like (β2) proteolytic sites, with IC50 of 31 and 3500 nM. Phase 3.

    Features:A first-in-class proteasome inhibitor that has improved pharmacokinetics (PK), pharmacodynamics(PD), and antitumor activity in preclinical studies.

Tags: buy Lomibuvir (VX-222, VCH-222) | Lomibuvir (VX-222, VCH-222) supplier | purchase Lomibuvir (VX-222, VCH-222) | Lomibuvir (VX-222, VCH-222) cost | Lomibuvir (VX-222, VCH-222) manufacturer | order Lomibuvir (VX-222, VCH-222) | Lomibuvir (VX-222, VCH-222) distributor
×
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID