444155 Sigma-AldrichMDMX Antagonist, SJ-172550 - CAS 431979-47-4 - Calbiochem
The MDMX Antagonist, SJ-172550, also referenced under CAS 431979-47-4, controls the biological activity of MDMX.
More>> The MDMX Antagonist, SJ-172550, also referenced under CAS 431979-47-4, controls the biological activity of MDMX. Less<<Synonyms: Methyl-2-(2-chloro-6-ethoxy-4-(E)-(3-methyl-5-oxo-1-phenyl-pyrazol-4-ylidene)methyl)phenoxy)acetate, MDMX Inhibitor II
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Overview
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Key Spec Table
| CAS # | Empirical Formula |
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| 431979-47-4 | C₂₂H₂₁ClN₂O₅ |
| Description | |
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| Overview | A cell-permeable phenyl-pyrazolylidene compound that competes with p53-derived peptide (aa 15-29) binding to MDMX in cell-free binding assays (EC50 = 2.3 µM) in a reversible manner and effectively disrupts cellular p53-MDMX interaction (IC50 <20 µM in C33A, HER, and Weri1 cultures), while exhibiting much weaker affinity toward MDM2 (EC50 = 26 µM in p53 peptide competition assays). MDMX inhibition by 20 µM SJ-172550 and MDM2 inhibition by 5 µM Nutlin-3a (Cat. Nos. 444143 & 444151) are both shown to result in reduced proliferation and increased cellular caspase-3 in cultured cells, however, only MDM2, but not MDMX, inhibition results in a significant p53 protein level upregulation. |
| Catalogue Number | 444155 |
| Brand Family | Calbiochem® |
| Synonyms | Methyl-2-(2-chloro-6-ethoxy-4-(E)-(3-methyl-5-oxo-1-phenyl-pyrazol-4-ylidene)methyl)phenoxy)acetate, MDMX Inhibitor II |
| References | |
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| References | Reed, D., et al. 2010. J. Biol. Chem. 285, 10786. |
| Product Information | |
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| CAS number | 431979-47-4 |
| Form | Orange solid |
| Hill Formula | C₂₂H₂₁ClN₂O₅ |
| Chemical formula | C₂₂H₂₁ClN₂O₅ |
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| Quality Level | MQ100 |
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| Purity | ≥95% by NMR |
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| Packaged under inert gas | Packaged under inert gas |
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| Specifications |
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| Global Trade Item Number | |
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| Catalogue Number | GTIN |
| 444155 | 0 |
Documentation
MDMX Antagonist, SJ-172550 - CAS 431979-47-4 - Calbiochem SDS
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MDMX Antagonist, SJ-172550 - CAS 431979-47-4 - Calbiochem Certificates of Analysis
| Title | Lot Number |
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| 444155 |
References
| Reference overview |
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| Reed, D., et al. 2010. J. Biol. Chem. 285, 10786. |



