Date published: 2026-1-31

1-800-457-3801

SCBT Portrait Logo
Seach Input

Tyrphostin B42 (CAS 133550-30-8)

5.0(1)
Write a reviewAsk a question

See product citations (4)

Application:
Tyrphostin B42 is a potent JAK2 inhibitor
CAS Number:
133550-30-8
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.

QUICK LINKS

Tyrphostin B42 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, Tyrphostin B42 has been observed to block cytokine-induced activation of JAK2 in eosinophils and STAT3 activation in T cell lymphoma cells. Unlike other kinase inhibitors, Tyrphostin B42 does not inhibit JAK1, Lck, Btk, Tyk2, Syk, Lyn, and Src. Research indicates that Tyrphostin B42 inhibits IL-7 mediated proliferation. Inhibition of Jak kinase activity by Tyrphostin B42 leads to lower levels of p85 phosphorylation and p-13 kinase activation.


Tyrphostin B42 (CAS 133550-30-8) References

  1. Tyrphostin B42 inhibits IL-12-induced tyrosine phosphorylation and activation of Janus kinase-2 and prevents experimental allergic encephalomyelitis.  |  Bright, JJ., et al. 1999. J Immunol. 162: 6255-62. PMID: 10229872
  2. Cardiotoxicity of de Gramont's regimen: incidence, clinical characteristics and long-term follow-up.  |  Meydan, N., et al. 2005. Jpn J Clin Oncol. 35: 265-70. PMID: 15855175
  3. The tyrphostin B42 inhibits cell proliferation and HER-2 autophosphorylation in cervical carcinoma cell lines.  |  Soto-Cruz, I., et al. 2008. Cancer Invest. 26: 136-44. PMID: 18259943
  4. Antiapoptotic properties of erythropoiesis-stimulating proteins in models of cisplatin-induced acute kidney injury.  |  Salahudeen, AK., et al. 2008. Am J Physiol Renal Physiol. 294: F1354-65. PMID: 18385271
  5. [Diagnostic and prognostic significance of anti-HBCAG IgM in hepatitis B and its outcomes].  |  Fedorchenko, SV. 1991. Klin Med (Mosk). 69: 66-8. PMID: 1865655
  6. Tyrphostins I: synthesis and biological activity of protein tyrosine kinase inhibitors.  |  Gazit, A., et al. 1989. J Med Chem. 32: 2344-52. PMID: 2552117
  7. Tyrphostin B42 attenuates trichostatin A-mediated resistance in pancreatic cancer cells by antagonizing IL-6/JAK2/STAT3 signaling.  |  Zhang, X., et al. 2018. Oncol Rep. 39: 1892-1900. PMID: 29393444
  8. 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
  9. JAK3 protein tyrosine kinase mediates interleukin-7-induced activation of phosphatidylinositol-3' kinase.  |  Sharfe, N., et al. 1995. Blood. 86: 2077-85. PMID: 7662955
  10. 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

Tyrphostin B42, 5 mg

sc-3556
5 mg
$26.00

Why is this version of AG-490 more affordable that the Tyrphostin AG-490 you offer? Is this one less pure?

Asked by: Adrian1
Thank you for your question. These are basically the same product, the main difference is we offer a purity minimum 98% for sc-216033.
Answered by: Tech Service
Date published: 2019-06-12
  • y_2026, m_1, d_23, h_8CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_3556, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 123ms
  • QUESTIONS, PRODUCT
Rated 5 out of 5 by from CaceresCaceres-Cortes, et. al. (PubMed ID 11507083) found that when treating INBL and CALO cells with Tyrphostin B42, prevented c-Kit tyrosine phosphorylation and led to apoptosis (assessed by TUNEL). -SCBT Publication Review
Date published: 2015-01-24
  • y_2026, m_1, d_23, h_8
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_3556, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 14ms
  • REVIEWS, PRODUCT
Tyrphostin B42 is rated 5.0 out of 5 by 1.
  • y_2026, m_1, d_23, h_8
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_3556, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 139ms
  • REVIEWS, PRODUCT