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PLX-4720 | B-RAF inhibitor

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Catalog #:

Product Description

PLX-4720 is an orally-available, ATP-competitive, highly selective, azaindole-based inhibitor of B-Raf (V600E) with IC50 value of 13 nM. PLX-4720 has additional activity towards mutant forms of c-Raf-1 (Y340D, Y341D) at an IC50 of 6.7 nM, with modest single micromolar activity versus kinases such as FRK, CSK, SRC, FGFR, KDR< HGK, and Aurora A. [1] PLX-4720 has shown preclinical activity in melanoma and thyroid cancer models. [1, 2]

PLX-4720 preferentiallly inhibits ERK phosphorylation in tumor cell lines bearing the V600E allele. In melanoma models it induces cell cycle arrest and apoptosis exclusively in B-Raf (V600E)-positive cells.

In an orthotopic 8505c human thyroid cancer mice model, PLX-4720 caused significant reduction in tumor growth (>90%) and dramatically decreased lung metastases. [3]

Technical information:

Chemical Formula:   C17H14ClF2N3O3S
CAS #:   918505-84-7
Molecular Weight:   413.83
Purity:   >98%
Appearance:   White
Chemical Name:   N-(3-(5-chloro-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-2,4-difluorophenyl)propane-1-sulfonamide
Solubility:   Up to 100 mM in DMSO
Synonyms:   PLX-4720, PLX4720

Shipping Condition: The product is shipped in a glass vial at ambient temperature.
Storage condition: For longer shelf life, store solid powder at 4oC desiccated, or store DMSO solution at -20oC.


1. Tsai et al., Discovery of a selective inhibitor of oncogenic B-Raf kinase with potent antimelanoma activity. Proc. Natl. Acad. Sci. 2008, 105(8), 3041-3046. Pubmed ID: 18287029
2. Nucera et al., Targeting BRAFV600E with PLX4720 displays potent antimigratory and anti-invasive activity in preclinical models of human thyroid cancer. The Oncologist, 2011, 16, 296-309. Pubmed ID: 21355020
3. Nucera et al., B-Raf(V600E) and thrombospondin-1 promote thyroid cancer progression. Proc. Natl. Acad. Sci. 2010, 107(23), 10649-10654. Pubmed ID: 20498063

Other Information:

Product Specification (pdf)
MSDS (pdf)
Certificate of Analysis is available upon request.

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