• We specialize in small molecule inhibitors, agonists, antagonists and screening libraries!
Search Site
Home >> Signaling Pathways >> Tyrosine Kinase >> HER2 >> Poziotinib
Related Products
Poziotinibirreversible pan-HER inhibitor


Catalog No. B5827
Size Price Stock Qty
5mg $50.00 In stock
10mg $110.00 In stock
50mg $390.00 In stock

Tel: +1-832-696-8203

Email: sales@apexbt.com

Worldwide Distributors

Sample solution is provided at 25 µL, 10mM.

Quality Control

Chemical structure


Poziotinib Dilution Calculator

Concentration (start)
Volume (start)
Concentration (final)
Volume (final)


Poziotinib Molarity Calculator



Chemical Properties

Cas No. 1092364-38-9 SDF Download SDF
Chemical Name 1-(4-((4-((3,4-dichloro-2-fluorophenyl)amino)-7-methoxyquinazolin-6-yl)oxy)piperidin-1-yl)prop-2-en-1-one
Canonical SMILES C=CC(N1CCC(OC2=C(OC)C=C3C(C(NC4=C(F)C(Cl)=C(Cl)C=C4)=NC=N3)=C2)CC1)=O
Formula C23H21Cl2FN4O3 M.Wt 491.34
Solubility >94.2mg/mL in DMSO Storage Store at -20°C
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
Shipping Condition Evaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request


Poziotinib (HM781-36B) is an irreversible pan-HER inhibitor with IC50 values of 3.2, 5.3 and 23.5 nM for HER1, HER2 and HER4, respectively [1].

Epidermal growth factor receptors (EGFR/HER1, HER2/ErbB2, HER3/ErbB3, HER4/ErbB4) are receptor tyrosine kinases and play important roles in cell proliferation and differentiation. The EGFR family is a major target of anticancer drugs [1].

Poziotinib is an irreversible pan-HER inhibitor. In HER2 amplified SNU216 and N87 gastric cancer cells, HM781-36B inhibited cell growth with IC50 values of 4 and 1 nM, respectively. Also, HM781-36B potently inhibited the phosphorylation of HER family and downstream proteins such as STAT3, AKT and ERK, and induced G1 arrest and apoptosis. HM781-36B dose-dependently increased the amount of cleaved form of effector caspases (caspase-3 and caspase-7) and PARP, reduced antiapoptotic proteins BCL-2 and MCL-1, and induced proapoptotic protein BIM [1]. In HER2-amplified breast cancer cells, HM781-36B inhibited cell growth with IC50 values of 1, 1.2 and 9.5 nM for SK-BR-3, BT474, and MDA-MB-453 cells, respectively [2].

In nude mouse bearing N87 human gastric cancer xenograft model, HM781-36B significantly inhibited tumor growth and exhibited a synergistic effect when administered with chemotherapeutic agents [1].

[1].  Nam HJ, Kim HP, Yoon YK, et al. Antitumor activity of HM781-36B, an irreversible Pan-HER inhibitor, alone or in combination with cytotoxic chemotherapeutic agents in gastric cancer. Cancer Lett, 2011, 302(2): 155-165.
[2].  Kim HJ, Kim HP, Yoon YK, et al. Antitumor activity of HM781-36B, a pan-HER tyrosine kinase inhibitor, in HER2-amplified breast cancer cells. Anticancer Drugs, 2012, 23(3): 288-297.