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EI1

CAS No.
1418308-27-6
Chemical Name:
EI1
Synonyms
EI1;CS-2378;EI1;EI 1;KB-145943;EI1 ,S7611;EI1 USP/EP/BP;EI1;EI-1;EI 1;EI1 (KB145943;Ezh2 inhibitor;EI1, 10 mM in DMSO
CBNumber:
CB52655403
Molecular Formula:
C23H26N4O2
Molecular Weight:
390.48
MDL Number:
MFCD25976740
MOL File:
1418308-27-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 04:26:31

EI1 Properties

Boiling point 675.9±55.0 °C(Predicted)
Density 1.20±0.1 g/cm3(Predicted)
storage temp. Sealed in dry,Store in freezer, under -20°C
solubility insoluble in H2O; insoluble in EtOH; ≥19.5 mg/mL in DMSO
form Powder
pka 11.88±0.10(Predicted)
color White to off-white
InChI 1S/C23H26N4O2/c1-5-17(6-2)27-8-7-18-19(10-16(12-24)11-21(18)27)22(28)25-13-20-14(3)9-15(4)26-23(20)29/h7-11,17H,5-6,13H2,1-4H3,(H,25,28)(H,26,29)
InChIKey PFHDWRIVDDIFRP-UHFFFAOYSA-N
SMILES [nH]1[c](c(c(cc1C)C)CNC(=O)c2c3c([n](cc3)C(CC)CC)cc(c2)C#N)=O
UNSPSC Code 12352200
NACRES NA.77

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332-H315-H319
Precautionary statements  P501-P261-P270-P271-P264-P280-P337+P313-P305+P351+P338-P362+P364-P332+P313-P301+P312+P330-P302+P352+P312-P304+P340+P312
WGK Germany  WGK 2
Storage Class 11 - Combustible Solids

EI1 price More Price(40)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 5.00561 Ezh2 Inhibitor II, EI1 - CAS 1418308-27-6 - Calbiochem 1418308-27-6 10mg $247 2026-04-30 Buy
Cayman Chemical 19146 EI1 ≥98% 1418308-27-6 1mg $41 2026-04-30 Buy
Cayman Chemical 19146 EI1 ≥98% 1418308-27-6 5mg $178 2026-04-30 Buy
Cayman Chemical 19146 EI1 ≥98% 1418308-27-6 10mg $235 2026-04-30 Buy
ChemScene CS-1654 EI1 98.84% 1418308-27-6 5mg $87 2026-06-04 Buy
Product number Packaging Price Buy
5.00561 10mg $247 Buy
19146 1mg $41 Buy
19146 5mg $178 Buy
19146 10mg $235 Buy
CS-1654 5mg $87 Buy

EI1 Chemical Properties, Uses, Production

Description

EZH2 is a histone methyltransferase and its activation leads to alteration in cell cycle regulation, proliferation, and cancer progression [65]. High expression and mutation of EZH2 are in a variety of malignancies and usually portend for a poor prognosis.

Uses

EI1 (KB-145943) is a potent and selectiveEZH2inhibitor withIC50of 15 nM and 13 nM for EZH2 (WT) and EZH2 (Y641F), respectively.

Pharmacology

EZH2 has been shown to repress the cell cycle inhibitor p21 and other proapoptotic factors, thereby promoting cell cycling in SCLC cells. In various SCLC cell lines, suppression of EZH2 leads to reduction of cells in S, G2/M phase with increased p21 expression. EZH2 was also shown to prevent apoptosis by inhibition of TGF-β via histone methyltransferase methylation of lysine 27in histone H3 (H3K27me3). In addition, it has been shown that in platinum-resistant cancer cells, protein and mRNA expression EZH2 is upregulated and by silencing EZH2 overcomes drug resistance, making EZH2 a target of interest in SCLC.

in vitro

based on studies from dlbcl cells, it was shown that ei1 suppressed cellular h3k27 methylation and activated expression of ezh2 target gene - p16. ei1 also blocked h3k27 methylation and cell proliferation in mouse embryonic fibroblasts. in addition, ei1 potently and selectively inhibited the growth of dlbcl cells carrying ezh2 mutation, and therefore resulted in cell cycle arrest and apoptosis. [1]

IC 50

a potent and selective suppressor of ezh2 with ic50 values of 15 nm and 13 nm for wild type ezh2 and ezh2 y641f mutant, respectively

References

[1]qia w, chan hm, teng l, li l, chuai s, zhang rp, zeng j, li m, fan h, lin y, gu j, ardayfiob o, zhang jh, yan x, fang j, mi y, zhang m, zhou t, feng g, chen zj, li g, yang t, zhao k, liu x, yu z, lu cx, atadja p and li e. selective inhibition of ezh2 by a small molecule inhibitor blocks tumor cells proliferation. proc natl acad sci. 2012 dec; 109(52): 213605.

EI1 Preparation Products And Raw materials

Raw materials

Preparation Products

EI1 Suppliers

Global Suppliers ( 90)
Supplier Tel Email Country ProdList Advantage
Shanghai Boyle Chemical Co., Ltd. sales@boylechem.com China 2915 55
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66113011 13913916777 cfzhang@aikonchem.com China 19902 55
Haoyuan Chemexpress Co., Ltd. 021-58950125 info@chemexpress.com China 7545 61
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29985 65
Jinan Mingya Medical Technology Co., Ltd. 0531-85828981 864598798@qq.com China 587 58
Sichuan Wei Keqi Biological Technology Co., Ltd. 028-81700200 18116577057 3003855609@qq.com China 7717 56
ShangHai KenEn Chemical Technology Co., Ltd. 13120367189;18621755571 mychess007@163.com China 1994 55
LETOPHARM LIMITED +86-21-5821 5861 sales@letopharm.com China 2374 58
Shanghai Lollane Biological Technology Co.,Ltd. 021-52996696,15000506266 15000506266 China 4859 55
Shanghai DongYang Biotechnology Co., Ltd. 18657622632 chemsharker@126.com China 371 55

View Latest Price from EI1 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
EI1 pictures 2026-02-02 EI1
1418308-27-6
5mg 99%HPLC 2000tons Shaanxi Dideu Medichem Co. Ltd
  • EI1 pictures
  • EI1
    1418308-27-6
  • 99%HPLC
  • Shaanxi Dideu Medichem Co. Ltd

EI1 Spectrum

EI1 Ezh2 inhibitor CS-2378 EI1 (Ezh2 inhibitor EI1;EI 1 6-Cyano-N-[(1,2-dihydro-4,6-dimethyl-2-oxo-3-pyridinyl)methyl]-1-(1-ethylpropyl)-1H-indole-4-carboxamide EI1;EI-1;EI 1 6-cyano-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1-(pentan-3-yl)-1H-indole-4-carboxamide KB-145943 1H-Indole-4-carboxamide, 6-cyano-N-[(1,2-dihydro-4,6-dimethyl-2-oxo-3-pyridinyl)methyl]-1-(1-ethylpropyl)- EI1 USP/EP/BP EI1 (KB145943 Histone Methyltransferase,Inhibitor,inhibit,Apoptosis,EI-1,EI1,KB145943,EI 1,KB 145943 EI1, 10 mM in DMSO Ezh2 Inhibitor II, EI1 EI1 ,S7611 1418308-27-6 Inhibitors API