Date published: 2026-7-27

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AG-490 (CAS 133550-30-8)

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Alternate Names:
Tyrphostin B42
Application:
AG-490 is a tyrosine kinase inhibitor of JAK2, EGFR, JAK3 and Neu
CAS Number:
133550-30-8
Purity:
≥98%
Molecular Weight:
294.30
Molecular Formula:
C17H14N2O3
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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AG-490 is a tyrosine kinase inhibitor of JAK2, EGFR, and Neu that belongs to the family of tyrphostins. In acute lymphoblastic leukemia studies the compound has been reported to inhibit JAK2 from B cell precursors. Additionally, AG-490 has been observed to block cytokine-induced activation of JAK2 in eosinophils and STAT3 activation in T cell lymphoma cells. Unlike other kinase inhibitors, AG-490 does not inhibit JAK1, Lck, Btk, Tyk2, Syk, Lyn, and Src. Research indicates that AG-490 inhibits IL-7 mediated proliferation. Inhibition of Jak kinase activity by AG-490 leads to lower levels of p85 phosphorylation and p-13 kinase activation. AG-490 is an inhibitor of JAK3.


AG-490 (CAS 133550-30-8) References

  1. JAK3, STAT, and MAPK signaling pathways as novel molecular targets for the tyrphostin AG-490 regulation of IL-2-mediated T cell response.  |  Wang, LH., et al. 1999. J Immunol. 162: 3897-904. PMID: 10201908
  2. Tyrphostin AG-490 inhibits cytokine-mediated JAK3/STAT5a/b signal transduction and cellular proliferation of antigen-activated human T cells.  |  Kirken, RA., et al. 1999. J Leukoc Biol. 65: 891-9. PMID: 10380915
  3. Blockade of JAK2 by tyrphostin AG-490 inhibits antigen-induced eosinophil recruitment into the mouse airways.  |  Kumano, K., et al. 2000. Biochem Biophys Res Commun. 270: 209-14. PMID: 10733929
  4. JAK2 tyrosine kinase inhibitor tyrphostin AG490 downregulates the mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription (STAT) pathways and induces apoptosis in myeloma cells.  |  De Vos, J., et al. 2000. Br J Haematol. 109: 823-8. PMID: 10929036
  5. JAK inhibitors AG-490 and WHI-P154 decrease IFN-gamma-induced iNOS expression and NO production in macrophages.  |  Sareila, O., et al. 2006. Mediators Inflamm. 2006: 16161. PMID: 16883061
  6. Tyrphostin AG-490 inhibited the acute phase of zymosan-induced inflammation.  |  Dimitrova, P. and Ivanovska, N. 2008. Int Immunopharmacol. 8: 1567-77. PMID: 18656556
  7. Inhibition of Janus kinases by tyrosine phosphorylation inhibitor, Tyrphostin AG-490.  |  Rashid, S., et al. 2015. J Biomol Struct Dyn. 33: 2368-79. PMID: 26017266
  8. [Intrathecal injection of AG-490 reduces bone-cancer-induced spinal cord astrocyte reaction and thermal hyperalgesia in a mouse model].  |  Zhang, J., et al. 2018. Zhong Nan Da Xue Xue Bao Yi Xue Ban. 43: 1182-1187. PMID: 30643061
  9. ESTAT3 Inhibitor AG-490 Inhibits the Growth of Prostate Cancer by miR-503-5p Both In Vivo and In Vitro.  |  Tan, G., et al. 2020. Technol Cancer Res Treat. 19: 1533033820948062. PMID: 33063634
  10. AG490 protects cerebral ischemia/reperfusion injury via inhibiting the JAK2/3 signaling pathway.  |  Fan, L. and Zhou, L. 2021. Brain Behav. 11: e01911. PMID: 33098244
  11. Activation of phosphatidylinositol-3 kinase by ligation of the interleukin-7 receptor is dependent on protein tyrosine kinase activity.  |  Dadi, H., et al. 1994. Blood. 84: 1579-86. PMID: 7520779
  12. JAK3 protein tyrosine kinase mediates interleukin-7-induced activation of phosphatidylinositol-3' kinase.  |  Sharfe, N., et al. 1995. Blood. 86: 2077-85. PMID: 7662955
  13. Inhibition of acute lymphoblastic leukaemia by a Jak-2 inhibitor.  |  Meydan, N., et al. 1996. Nature. 379: 645-8. PMID: 8628398

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

AG-490, 5 mg

sc-202046C
5 mg
$84.00

AG-490, 10 mg

sc-202046
10 mg
$87.00

AG-490, 25 mg

sc-202046B
25 mg
$223.00

AG-490, 50 mg

sc-202046A
50 mg
$329.00