Home Cytoskeletal Signaling HSP (HSP90) inhibitor NMS-E973 For research use only.

NMS-E973

NMS-E973 is a potent and selective Hsp90 inhibitor with DC50 of <10 nM for Hsp90 binding, no activiy against a panel of 52 diverse protein kinases.

NMS-E973 Chemical Structure

NMS-E973 Chemical Structure

CAS No. 1253584-84-7

Purity & Quality Control

Batch: S728201 DMSO]90 mg/mL]false]Water]Insoluble]false]Ethanol]Insoluble]false Purity: 99.07%
99.07

NMS-E973 Related Products

Signaling Pathway

HSP (HSP90) Signaling Pathways

HSP (HSP90) Signaling Pathway

Biological Activity

Description NMS-E973 is a potent and selective Hsp90 inhibitor with DC50 of <10 nM for Hsp90 binding, no activiy against a panel of 52 diverse protein kinases.
Targets
HSP90 [1]
<10 nM(DC50)
In vitro
In vitro NMS-E973 shows a widespread antiproliferative activity with an average IC50 of 1.6 μM, and induces the degradation of client protein, such as Flt3, B-Raf, AKT, which further blocks tumor-related pathways, such as the Raf/MAPK, PI3K/AKT, and JAK/STAT pathways. [1]
Kinase Assay Hsp90 binding assays
For competition experiments, a protein concentration of 5 nM for Hsp90 and of 200 nM for Trap1 are mixed with 0.5 nmol/L probe (final concentrations). After incubation, the dimethyl sulfoxide (DMSO) compound solution is added to the mixture. The plate is incubated for 18 hours at room temperature and then the fluorescence polarization signal was measured. Data are fitted with the program Dynafit version 3.28.039 or SigmaPlot (SSI) using the mathematical equation for competitive binding of 2 ligands to the receptor.
Experimental Result Images Methods Biomarkers Images PMID
Growth inhibition assay Cell viability 29593424
Western blot PUMA / NOXA / BID / BAD / Bak / Bmf 29593424
In Vivo
In vivo NMS-E973 (10 mg/kg i.v.) shows a favorable pharmacokinetic profile with selective retention in tumor tissue and ability to cross the BBB. NMS-E973 (60 mg/kg i.v.) shows high antitumor efficacy in all the models tested, including A375 and A2780 xenografts. In addition, NMS-E973 (10 mg/kg i.v.) together with B-Raf inhibitor PLX-4720 at 100 mg/kg produces a synergic anti-tumor effect. [1] In a mouse model of human ovarian cancer, NMS-E973 produces the antitumor activity by inhibition of Hsp90. [2]
Animal Research Animal Models Mice bearing A375 xenografts, A2780 xenografts, MOLM-13 xenografts or RKO xenografts.
Dosages ~60 mg/kg
Administration i.v.

Chemical Information & Solubility

Molecular Weight 454.43 Formula

C22H22N4O7
CAS No. 1253584-84-7 SDF --
Smiles CN1CCC(CC1)NC(=O)C2=NOC(=C2)C3=C(C=C(C=C3OC4=CC=C(C=C4)[N+](=O)[O-])O)O
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 90 mg/mL ( (198.05 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble


Molecular Weight Calculator

In vivo
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In vivo Formulation Calculator

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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 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.
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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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