Ro 5126766

This product is for research use only, not for human use. We do not sell to patients.

Ro 5126766
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Cat #: V3658 CAS #: 946128-88-7 Purity ≥ 98%

Description: Ro 5126766 (also known as Ro-5126766; CH5126766) is a novel, potent, first-in-class dual inhibitor of MEK/RAF mitogen-activated protein kinases (MAPKs) with anticancer activity.

References: Martinez-Garcia M, et al. First-in-human, phase I dose-escalation study of the safety, pharmacokinetics, and pharmacodynamics of RO5126766, a first-in-class dual MEK/RAF inhibitor in patients with solid tumors. Clin Cancer Res. 2012 Sep 1;18(17):4806-19.

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Molecular Weight (MW)471.46
Molecular FormulaC21H18FN5O5S
CAS No.946128-88-7
Storage-20℃ for 3 years in powder formr
-80℃ for 2 years in solvent
SMILES CodeO=C1C(CC2=C(F)C(NS(=O)(NC)=O)=NC=C2)=C(C)C3=CC=C(OC4=NC=CC=N4)C=C3O1
SynonymsAvutometinib; RO5126766; RO 5126766; RO5126766; CH5126766; CH5126766; CH 5126766
ProtocolIn VitroAvutometinib (Ro 5126766) is an allosteric inhibitor that binds directly to MEK and prevents its phosphorylation by RAF through the formation of a stable RAF-MEK complex. Ro 5126766 inhibits both the phosphorylation of MEK by RAF and the activation of ERK by MEK. In cell-free MEK and RAF kinase assays, Avutometinib effectively inhibits activation of ERK2 by MEK1 with an IC50 of 160 nM (SD=±0.043) and inhibits the phosphorylation of MEK1 protein by BRAF (IC50=190 nM, SD=±0.003), BRAFV600E (IC50=8.2 nM, SD=±0.0015), and CRAF (IC50=56 nM, SD=±0.016). Avutometinib effectively inhibits both MEK and ERK phosphorylation in a panel of human tumor cell lines including KRAS/HRAS and BRAF mutant cell lines and KRAS/HRAS and BRAF wild-type cells.
In VivoIn KRAS-mutant xenograft models, Avutometinib (Ro 5126766) inhibits growth and causes tumor regressions more effectively than another allosteric MEK inhibitor, PD0325901. Preclinical data from a series of human tumor mouse xenograft models indicates an ED50 for Ro 5126766 of 0.03 to 0.23 mg/kg and an ED90 of 0.15 to 1.56 mg/kg. These effective doses are associated with target trough concentrations of 17 to 133 ng/L and 87 to 901 ng/mL, 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
1mM2.1211 mL10.6054 mL21.2107 mL42.4214 mL
5mM0.4242 mL2.1211 mL4.2421 mL8.4843 mL
10mM0.2121 mL1.0605 mL2.1211 mL4.2421 mL
20mM0.1061 mL0.5303 mL1.0605 mL2.1211 mL
Quality Control Documentation
The molarity calculator equation
Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)
Mass
=
Concentration
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Volume
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Molecular Weight*
The dilution calculator equation
Concentration(start) × Volume(start) = Concentration(final) × Volume(final)

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

Concentration(start)
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=
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C2
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Volume(final)
V2
Step One: Enter information below
Dosage mg/kg Average weight of animals g Dosing volume per animal µL Number of animals
Step Two: Enter the in vivo formulation
%DMSO + % + %Tween 80 + %ddH2O

Calculation Results:
Working concentration: mg/ml;
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:
  • (1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
  • (2) Be sure to add the solvent(s) in order.