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Dasabuvir (ABT-333)

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Dasabuvir (ABT-333)
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Cat #: V3263 CAS #: 1132935-63-7 Purity ≥ 98%

Description: Dasabuvir (formerly known as ABT-333; ABT333; trade name Exviera, Viekira Pak, Viekira XR) is a nonnucleoside inhibitor of the RNA-dependent RNA polymerase encoded by the hepatitis C virus (HCV) NS5B gene. It inhibited recombinant NS5B polymerases derived from HCV genotype 1a and 1b clinical isolates, with IC50 values between 2.2 and 10.7 nM, and was at least 7,000-fold selective for the inhibition of HCV genotype 1 polymerases over human/mammalian polymerases. Dasabuvir is an FDA approved antiviral medication for the treatment of hepatitis C. It is often used together with the combination medication ombitasvir/paritaprevir/ritonavir specifically for hepatitis C virus (HCV) type 1.

References: Kati W, et al. In vitro activity and resistance profile of dasabuvir, a nonnucleoside hepatitis C virus polymerase inhibitor. Antimicrob Agents Chemother. 2015 Mar;59(3):1505-11.

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Molecular Weight (MW)493.57
Molecular FormulaC26H27N3O5S
CAS No.1132935-63-7
Storage-20℃ for 3 years in powder formr
-80℃ for 2 years in solvent
Solubility In VitroDMSO: ≥ 45 mg/mLr
Water: N/Ar
Ethanol: N/A
SMILES CodeCS(=O)(NC1=CC=C2C=C(C3=CC(N(C(N4)=O)C=CC4=O)=CC(C(C)(C)C)=C3OC)C=CC2=C1)=O
SynonymsABT333; ABT-333; ABT 333, Dasabuvir; Trade names: Viekira Pak
ProtocolIn VitroIn vitro activity: Dasabuvir is at least 7,000-fold selective for the inhibition of HCV genotype 1 polymerases over human/mammalian polymerases. Dasabuvir inhibits the polymerase enzymatic activity of genotype 1 laboratory strain enzymes (H77, BK, N, and Con1 strains), as well as enzymes produced from polymerase genes from HCV genotype 1-infected subjects, with IC50s between 2.2 and 10.7 nM. Dasabuvir inhibits replication of HCV subgenomic replicons in cell culture assays, with EC50 values of 7.7 and 1.8 nM against genotype 1a (H77) and 1b (Con1), respectively. In the presence of 40% human plasma, there is a 12- to 13-fold decrease in inhibitory potency, yielding EC50s of 99 and 21 nM for HCV genotype 1a (H77) and 1b (Con1) replicons, respectively. Kinase Assay: the inhibition of human and mammalian DNA polymerases was evaluated by Replizyme Ltd. (Heslington, United Kingdom). The DNA-dependent RNA polymerase activity for human RNA polymerases II and III was measured using polymerases present in a HeLa cell extract and DNA templates containing promoters specific for either polymerase II or polymerase III. α-Amanitin, a potent inhibitor of human polymerase II and a modest inhibitor of polymerase III, was used as a control. The reaction mixtures contained 20 mM Tris-HCl (pH 8.0), 20% glycerol, 100 mM KCl, 1 mM dithiothreitol (DTT), 0.2 mM EDTA, 6 mM MgCl2, and either 1 μg/μl pAdVAntage plasmid (Promega, Madison, WI) (for the polymerase III assay) or 25 ng/μl cytomegalovirus (CMV) promoter DNA (Promega, Madison, WI) (for the polymerase II assay). The reaction mixtures also contained HeLa cell nuclear extract (ProteinOne, Rockville, MD), 400 μM ATP, CTP, and UTP, and 16 μM GTP and [α-33P]GTP. The reaction mixtures were incubated for 1 h at 30°C, quenched with the addition of proteinase K, SDS, and EDTA, incubated for 30 min at 56°C, and then analyzed on a Criterion Bio-Rad 5% acrylamide Tris-borate-EDTA (TBE)-urea gel. The gel was dried and placed on a PhosphorImager screen for overnight exposure. The volumes of the product bands were measured, and the percent inhibition was calculated; IC50 values were calculated using the following equation: % inhibition = 100[I]/([I] + IC50). Cell Assay: Dasabuvir (ABT-333) is at least 7,000-fold selective for the inhibition of HCV genotype 1 polymerases over human/mammalian polymerases. Dasabuvir (ABT-333) inhibits the polymerase enzymatic activity of genotype 1 laboratory strain enzymes (H77, BK, N, and Con1 strains), as well as enzymes produced from polymerase genes from HCV genotype 1-infected subjects, with IC50s between 2.2 and 10.7 nM. Dasabuvir (ABT-333) inhibits replication of HCV subgenomic replicons in cell culture assays, with EC50 values of 7.7 and 1.8 nM against genotype 1a (H77) and 1b (Con1), respectively. In the presence of 40% human plasma, there is a 12- to 13-fold decrease in inhibitory potency, yielding EC50s of 99 and 21 nM for HCV genotype 1a (H77) and 1b (Con1) replicons, respectively.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Preparing Stock Solutions
Solvent volume to be added Mass (the weight of a compound)
Mother liquor concentration 1mg5mg10mg20mg
1mM2.0261 mL10.1303 mL20.2606 mL40.5211 mL
5mM0.4052 mL2.0261 mL4.0521 mL8.1042 mL
10mM0.2026 mL1.0130 mL2.0261 mL4.0521 mL
20mM0.1013 mL0.5065 mL1.0130 mL2.0261 mL
Quality Control Documentation
The molarity calculator equation
Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)
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The dilution calculator equation
Concentration(start) × Volume(start) = Concentration(final) × Volume(final)

This equation is commonly abbreviated as: C1 V1 = C2 V2

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Step Two: Enter the in vivo formulation
%DMSO + % + %Tween 80 + %ddH2O

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Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid concentration mg/mL) ,Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation: Take µL DMSO master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH2O,mix and clarify.
Note:
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