MI-773 (SAR405838)

Catalog No.S7649

For research use only.

MI-773 (SAR405838) is an orally available MDM2 antagonist with Ki of 0.88 nM. Phase 1.

MI-773 (SAR405838) Chemical Structure

CAS No. 1303607-60-4

Selleck's MI-773 (SAR405838) has been cited by 8 Publications

1 Customer Review

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Biological Activity

Description MI-773 (SAR405838) is an orally available MDM2 antagonist with Ki of 0.88 nM. Phase 1.
p53 [1] MDM2 [1]
(Cell-free assay)
0.88 nM(Ki)
In vitro

MI-773 binds to MDM2 with Ki of 0.88 nM. MI-773 potently inhibits cell growth in cancer cell lines, including SJSA-1 (IC50, 0.092 μM), RS4;11 (IC50, 0.089 μM), LNCaP (IC50, 0.27 μM), and HCT-116 (IC50, 0.20 μM) cells, and displays high selectivity over cancer cell lines with mutated or deleted p53, including SAOS-2 (IC50, >10 μM), PC-3 (IC50, >10 μM), SW620 (IC50, >10 μM), and HCT-116 (p53-/-) (IC50, >20 μM) cells. [1]

In vivo In the SJSA-1 osteosarcoma, acute lymphoblastic leukemia RS4;11, LNCaP prostate cancer, and HCT-116 colon cancer xenograft model, MI-773 (p.o.) effectively inhibits tumor growth in a dose-dependent manner (10 mg/kg, 30 mg/kg, 50 mg/kg, 100 mg/kg, and 200 mg/kg,). [1]

Protocol (from reference)

Kinase Assay:[1]
  • Fluorescence-polarization binding assay:

    Binding affinities of MDM2 inhibitors and p53 peptide to MDM2 protein are determined using an Fluorescence-polarization (FP) binding assay. Binding affinities of MI-773 to Bcl-2, Bcl-xL, Mcl-1, and β-catenin are determined using a competitive FP-based assay, and its binding affinity to MDMx is determined using Biolayer Interferometry technology.

Cell Research:[1]
  • Cell lines: SJSA-1, RS4;11, LNCaP, SAOS-2, PC-3, SW620, HCT-116, and HCT-116 (p53-/-) cells
  • Concentrations: 100 μM
  • Incubation Time: ~48 h
  • Method: Cell growth inhibition activity is determined in a water-soluble tetrazolium-based assay. Cell death is measured by trypan blue staining and apoptosis is determined using an Annexin V-FLUOS staining kit.
Animal Research: [1]
  • Animal Models: SCID mice with SJSA-1 osteosarcoma (females), acute lymphoblastic leukemia RS4;11 (females), LNCaP prostate cancer (males), or HCT-116 colon cancer (females) xenograft model
  • Dosages: 200 mg/kg
  • Administration: p.o.

Solubility (25°C)

In vitro

DMSO 100 mg/mL
(177.77 mM)
Ethanol 31 mg/mL warmed
(55.11 mM)
Water Insoluble

Chemical Information

Molecular Weight 562.50


CAS No. 1303607-60-4
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles CC(C)(C)CC1C2(C(C(N1)C(=O)NC3CCC(CC3)O)C4=C(C(=CC=C4)Cl)F)C5=C(C=C(C=C5)Cl)NC2=O

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

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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 addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment Interventions Conditions Sponsor/Collaborators Start Date Phases
NCT01985191 Completed Drug: SAR405838|Drug: Pimasertib Neoplasm Malignant Sanofi|Merck KGaA Darmstadt Germany November 2013 Phase 1
NCT01636479 Completed Drug: SAR405838 Neoplasm Malignant Sanofi July 13 2012 Phase 1

(data from https://clinicaltrials.gov, updated on 2022-01-17)

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

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