EI1
Based on 2 publication(s) in Google Scholar
EI1 (KB-145943) is a potent and selective EZH2 inhibitor with IC50 of 15 nM and 13 nM for EZH2 (WT) and EZH2 (Y641F), respectively.
For research use only. We do not sell to patients.
- Purity: 98.84%
- CAS No.: 1418308-27-6
- Formula: C23H26N4O2
- Molecular Weight:390.48
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocol
- Purity & Documentation
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) EI1
MoreAll Histone Methyltransferase Isoforms
More
Biological Activity
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EZH2 Y641F mutant type 13 nM (IC50) |
EZH2 WT 15 nM (EC50) |
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Cell Line
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Type | Value | Description | References |
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| Sf9 | IC50 |
13 nM
Compound: 20, EI1
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Inhibition of N-terminal FLAG tagged human EZH2 Y641F mutant expressed in baculovirus infected Sf9 cells using H3K27 as substrate after 120 mins by mass spectrophotometric analysis
Inhibition of N-terminal FLAG tagged human EZH2 Y641F mutant expressed in baculovirus infected Sf9 cells using H3K27 as substrate after 120 mins by mass spectrophotometric analysis
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[PMID: 25406853] |
| Sf9 | IC50 |
15 nM
Compound: 20, EI1
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Inhibition of N-terminal FLAG tagged full-length human EZH2 expressed in baculovirus infected Sf9 cells using H3K27 as substrate after 120 mins by mass spectrophotometric analysis
Inhibition of N-terminal FLAG tagged full-length human EZH2 expressed in baculovirus infected Sf9 cells using H3K27 as substrate after 120 mins by mass spectrophotometric analysis
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[PMID: 25406853] |
In DLBCL cells, EI1 (KB-145943) inhibits cellular H3K27 methylation and activates Ezh2 target gene p16 expression. In mouse embryonic fibroblasts, EI1 (KB-145943) also inhibit H3K27me3 and cell proliferation. In addition, EI1 (KB-145943) selectively inhibits the growth of DLBCL cells carrying Ezh2 mutation, and causes cell cycle arrest and apoptosis[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1418308-27-6
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Appearance Solid
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Molecular Weight 390.48
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Formula C23H26N4O2
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Color White to off-white
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SMILES
CCC(CC)N(C=C1)C2=C1C(C(NCC3=C(C)C=C(C)NC3=O)=O)=CC(C#N)=C2
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Synonyms
KB-145943
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Publications (2)
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Journal Impact Factor
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Most Recent
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Nat Commun
Human iPSC-based Modeling of Pulmonary Fibrosis Reveals p300/CBP Inhibition Suppresses Alveolar Transitional Cell State. [Abstract]2026 Feb 12;17(1):1214. PMID: 41680175 -
Eur J Med Res
NF-κB-mediated enhancement of H3K27me3 through EZH2: a mechanism to suppress pyocyanin-induced autophagy in macrophages. [Abstract]2025 Apr 29;30(1):346. PMID: 40301947
Solvent & Solubility
DMSO : 7.69 mg/mL (19.69 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Protocol
Exponentially growing diffused large B-cell lymphoma (DLBCL) cells are seeded in 12-well plates at a density of 1×105 cells/mL with the indicated concentration of EI1 (KB-145943). Viable cell number is determined every 3-4 d for up to 14 or 15 d by Vi-CELL. Mouse embryonic fibroblasts (MEFs) are seeded in a six-well plate at 2.5×104 cell/mL and treated with EI1 (KB-145943) (3.3 μM) or 4-OH-tamoxifen (100 nM). Viable cell number is determined at days 3, 6 and 11. On days of cell counts, fresh growth medium and compound are replenwashed and cells split back to a density of 1×105 cells/mL. Total cell number is expressed as split-adjusted viable cells per milliliter. IC50 is calculated by PRISM and all proliferation experiments are repeated more than two times and representative data are presented.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (276 KB)
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SDS (392 KB)
- English - EN (392 KB)
- Français - FR (392 KB)
- Deutsch - DE (392 KB)
- Norwegian - NO (392 KB)
- Español - ES (392 KB)
- Swedish - SV (392 KB)
- Italian - IT (392 KB)
- Korean - KR (392 KB)
- Portuguese - PT (392 KB)
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Handling Instructions (2659 KB)
References
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.5610 mL | 12.8048 mL | 25.6095 mL | 64.0238 mL |
| 5 mM | 0.5122 mL | 2.5610 mL | 5.1219 mL | 12.8048 mL | |
| 10 mM | 0.2561 mL | 1.2805 mL | 2.5610 mL | 6.4024 mL | |
| 15 mM | 0.1707 mL | 0.8537 mL | 1.7073 mL | 4.2683 mL |
EI1 Related Classifications
HY-15573 Related Classifications
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