1. JAK/STAT Signaling Protein Tyrosine Kinase/RTK
  2. EGFR
  3. EGFR-IN-2

EGFR-IN-2 是一种非共价的,不可逆的,突变选择性的二代 EGFR 抑制剂。

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EGFR-IN-2 Chemical Structure

EGFR-IN-2 Chemical Structure

CAS No. : 1643497-70-4

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  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献


EGFR-IN-2 is a a noncovalent, irreversible, mutant-selective second generation EGFR inhibitor.

IC50 & Target


(In Vitro)

EGFR-IN-2 (Compound 21) inhibits EGFR autophosphorylation with IC50s of 0.027 μM, 0.009 μM ,0.033 μM , and 0.218 μM in double mutant TMLR cell line H1975, double mutant TMdel cell line PC9-ER, activating mutant del cell line PC9, and wild type cell line H292. In addition, EGFR-IN-2 demonstrats strong antiproliferative effect on the T790M mutant carrying H1975 cell line (IC50=0.361 μM) and the single activating mutant PC9 cell line (IC50=0.151 μM). Furthermore, EGFR-IN-2 also shows good selectivity against other kinases when evaluated in a 225-kinase panel (12/225 kinases inhibited at >70% when tested at 0.1 μM, 61-fold over the TMLR Ki and 63-fold over the TMdel Ki)[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

(In Vivo)

To examine its inhibitory effect on pEGFR levels in vivo, EGFR-IN-2 (Compound 21) is studied in a mouse H1975 (TMLR) xenograft model. After a single oral dose of 21 at 50 mg/kg, free plasma concentrations of EGFR-IN-2 at or exceeding the in vitro p-EGFR IC50 of 0.027 μM are sustained over 8 h. When administered at 100 mg/kg, the coverage of p-EGFR IC50 is extended to the last measured time point of 16 h postdose. Corresponding knockdown of p-EGFR and the downstream effectors pERK1/2 and AKT levels are observed at those time points, suggesting target engagement in vivo. In mouse, after intravenous and oral administration, the plasma clearance of EGFR-IN-2 is determined to be 104 mL/kg per min with a bioavailability of 19%. In dogs, the plasma clearance is 13 mL/kg per min with an oral bioavailability of 30%[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.






Room temperature in continental US; may vary elsewhere.


Please store the product under the recommended conditions in the Certificate of Analysis.

纯度 & 产品资料
Animal Administration

Eight week old female SCID beige mice are inoculated subcutaneously with 5×106 NCI-H1975 cells. When tumors reach a mean volume of 300 to 500 mm3, mice with similarly sized tumors are randomized into treatment groups. EGFR-IN-2 at 50 mg/kg or 100 mg/kg is administered orally as a single dose. Tumor and plasma samples are collected at 2, 8 or 16 h post dose[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

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  • 稀释计算器

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量   浓度   体积   分子量 *
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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start) × 体积 (start) = 浓度 (final) × 体积 (final)
× = ×
C1   V1   C2   V2
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.


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