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Cat. No. M3512
VX-222 Structure

VCH-222, Lomibuvir

Size Price Availability Quantity
5mg USD 115 In stock
10mg USD 215 In stock
50mg USD 650 In stock
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Quality Control
  • Current batch:
  • Purity >98%
  • COA
  • MSDS
Biological Activity

VX-222 is a small molecule non-nucleoside inhibitor of HCV NS5B polymerase that is being investigated for the treatment of hepatitis C virus infection. While the protease inhibitors (telaprevir and boceprevir) are the directly-targeted anti-HCV agents furthest along in the development pipeline, HCV polymerase - an enzyme responsible for copying viral genetic material-is also a promising target. VX-222 is a novel non-nucleoside HCV NS5B polymerase inhibitor with potent in vitro activity.

Cell Experiment
Cell lines Huh7.5 cells
Preparation method Trypsinizing Huh7.5 cells harboring HCV RNA replicons and plating into 48-well plates at a concentration of 4 × 104 cells/well. Changing the medium and adding VX-222in 200 μL of complete medium the next day. 48 hours later, 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
Concentrations 0.01 nM -10 μM
Incubation time 48 hours
Animal Experiment
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
Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 445.61
Formula C25H35NO4S
CAS Number 1026785-59-0
Purity >98%
Solubility DMSO 80 mg/mL
Storage at -20°C
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Abmole Inhibitor Catalog 2017

Keywords: VX-222, VCH-222, Lomibuvir supplier, HCV Protease, inhibitors

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