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ZM 39923 HCl JAK3 inhibitor,potent and selective

Catalog No.A4151
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10mM (in 1mL DMSO)
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Sample solution is provided at 25 µL, 10mM.

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Chemical structure

ZM 39923 HCl

Biological Activity

Description ZM 39923 HCl is a potent, selective inhibitor of Janus tyrosine kinase 3 (JAK3) with pIC50 value of 7.1.
Targets JAK3          
IC50 7.1 (pIC50)          

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Chemical Properties

Cas No. 1021868-92-7 SDF Download SDF
Chemical Name 3-(benzyl(isopropyl)amino)-1-(naphthalen-2-yl)propan-1-one hydrochloride
Canonical SMILES CC(C)N(CC1=CC=CC=C1)CCC(C2=CC3=CC=CC=C3C=C2)=O.Cl
Formula C23H25NO.HCl M.Wt 367.91
Solubility >9.2mg/mL in DMSO Storage Store at -20°C
Shipping Condition Evaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
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.


ZM 39923 is a selective inhibitor of JAK1 and JAK3 with pIC50 value of 4.4 and 7.1, respectively [1] [2].
JAK (Janus kinase) is a member of intracellular, non-receptor tyrosine kinases family and plays a pivotal role in transducing cytokine-mediated signals via the JAK-STAT pathway. It has been shown that type I and type II cytokine receptor families rely on the JAK family to phosphorylate and activate downstream proteins involved in their signal transduction pathways. Considering the biological function of JAK, a veraity of JAK inhibitors have been developed and mainly used for screening blood system disease, tumor, rheumatoid arthritis and psoriasis treatment [2] [3].
ZM 39923 is a selective JAK1 and JAK3 inhibitor. When tested with RA cells, administration of ZM 39923 combined with 50 μg/ml curcumol suppressed CD4(+) T cell proliferation and induced apoptosis through inhibiting Jak3-STAT5-related molecular activities and Bcl-2 expression, respectively [4]. In confluent ARPE-19 cells, pretreated with ZM 39923 followed acrolein treatment resulted in the reduction of cell viability and increased VEGF expression via mediating JAK3 and TGFβ2 [3].
It is reported that ZM 39923 has the inhibitory effect on TGM2 (which considered as a target for several disease treatment) with the IC50 value of 10 nM [5] and the same effect on EGFR [1].
[1].    Luo, C. and P. Laaja, Inhibitors of JAKs/STATs and the kinases: a possible new cluster of drugs. Drug Discov Today, 2004. 9(6): p. 268-75.
[2].    Brown, G.R., et al., Naphthyl ketones: a new class of Janus kinase 3 inhibitors. Bioorg Med Chem Lett, 2000. 10(6): p. 575-9.
[3].    Vidro-Kotchan, E., et al., NBHA reduces acrolein-induced changes in ARPE-19 cells: possible involvement of TGFbeta. Curr Eye Res, 2011. 36(4): p. 370-8.
[4].    Wang, H., et al., The molecular mechanism of curcumol on inducing cell growth arrest and apoptosis in Jurkat cells, a model of CD4(+) T cells. Int Immunopharmacol, 2014. 21(2): p. 375-82.
[5].    Lai, T.S., et al., Identification of chemical inhibitors to human tissue transglutaminase by screening existing drug libraries. Chem Biol, 2008. 15(9): p. 969-78.