2. Signaling Pathways
  3. MAPK/ERK Pathway
  4. Raf
  5. B-Raf Isoform

B-Raf

B-Raf is a serine/threonine protein kinase encoded by BRAF and functions as a central signal transducer in the RAS-RAF-MEK-ERK signaling cascade that regulates cell proliferation, differentiation, and survival[1][2]. Mechanistically, activated B-Raf phosphorylates MEK, leading to ERK activation and propagation of mitogenic signaling, making B-Raf a critical regulator of MAPK pathway output[2]. Dysregulation of this pathway is strongly linked to oncogenesis, and somatic BRAF mutations are among the most common kinase alterations identified in human cancer, particularly melanoma, colorectal cancer, thyroid cancer, and non-small-cell lung cancer[1][3]. In disease models, the canonical BRAF V600E mutation constitutively activates kinase signaling and promotes tumor cell growth independent of normal upstream regulatory inputs[2][3]. Compared with the related RAF isoforms A-Raf and C-Raf (RAF1), B-Raf displays stronger basal kinase activity and is the most potent activator of MEK-ERK signaling, making it a dominant MAPK pathway driver in many BRAF-mutant tumors[2]. For experimental applications, selective B-Raf inhibitors have been widely used to suppress oncogenic MAPK signaling and to investigate pathway dependence in cancer models[4]. The development of mutation-selective inhibitors, including compounds targeting BRAF V600E, established B-Raf as a validated therapeutic and mechanistic target and continues to support research on signaling regulation, drug resistance, and combination treatment strategies[4][5].

B-Raf Related Products (86):

Cat. No. Product Name Effect Purity
  • HY-148059
    Uplarafenib
    		Inhibitor 99.63%
    Uplarafenib (B-Raf IN 10) (Compound C09) is a BRAF inhibitor with an IC50 between 50 and 100 nM. Uplarafenib shows antitumor activity.
  • HY-18507
    AD57
    		Inhibitor 98.27%
    AD57 is an orally active multikinase inhibitor, inhibits RET, BRAF, S6K and Src, with greatly reduces mTOR activity.
  • HY-18227
    B-Raf IN 1
    		Inhibitor 99.94%
    B-Raf IN 1 is a potent and selective B-Raf kinase inhibitor with an IC50 of 24 nM.
  • HY-142160
    GNE-9815
    		Inhibitor 98.94%
    GNE-9815 (compound 7) is a highly selective, pan-RAF inhibitor with good oral bioavailability. GNE-9815 exhibits Ki values of 0.062 and 0.19 nM for CRAF and BRAF, respectively. GNE-9815 combines with MEK inhibitor Cobimetinib (HY-13064) shows synergistic modulation of MAPK pathway. GNE-9815 can be used in studies of KRAS mutant cancers.
  • HY-144269
    SHR902275
    		Inhibitor 99.80%
    SHR902275 is a potent, selective, and orally active RAF inhibitor targeting RAS mutant cancers. SHR902275 has IC50s of 1.6 nM, 10 nM, and 5.7 nM for cRAF, bRAFwt, and bRAFV600E, respectively. SHR902275 shows cell growth inhibition with GI50s of 1.5 and 0.17 nM, 0.4 nM and 0.32 nM for H358, A375, Calu6, and SK-MEL2 cells respectively.
  • HY-12847
    CCT241161
    		Inhibitor 99.77%
    CCT241161 is an orally active pan-RAF inhibitor with IC50s of 3, 6, 10, 15 and 30 nM for LCK, CRAF, SRC, V600E-BRAF and BRAF, respectively. CCT241161 shows good activity to in BRAF and NRAS mutant melanomas. CCT241161 also exhibits anticancer cell proliferative activity.
  • HY-15199
    Agerafenib hydrochloride
    		Inhibitor
    Agerafenib hydrochloride is a highly potent and orally efficacious inhibitor of BRAFV600E with a Kd of 14 nM.
  • HY-117273
    AZ304
    		Inhibitor 99.77%
    AZ304 is an ATP-competitive dual BRAF kinase inhibitor, potently inhibits wild type BRAF, V600E mutant BRAF and wild type CRAF, with IC50s of 79 nM, 38 nM and 68 nM, respectively. AZ304 also has significant effect on other kinases, such as p38 (IC50, 6 nM), CSF1R (IC50, 35 nM). Anti-tumor activity.
  • HY-15198
    KG5
    		Inhibitor 99.79%
    KG5 is an orally active dual PDGFRβ and B-Raf allosteric inhibitor. KG5 also inhibits Flt3, KIT and c-Raf. KG5 has anticancer, antiangiogenic activities.
  • HY-10331B
    Regorafenib mesylate
    		Inhibitor
    Regorafenib (BAY 73-4506) mesylate is an orally active and potent multi-targeted receptor tyrosine kinase inhibitor, with IC50 values of 13/4.2/46, 22, 7, 1.5 and 2.5 nM for VEGFR1/2/3, PDGFRβ, Kit, RET and Raf-1, respectively. Regorafenib mesylate shows very robust antitumor and antiangiogenic activity.
  • HY-126298
    RAF mutant-IN-1
    		Inhibitor
    RAF mutant-IN-1 is a RAF kinase inhibitor, extracted from patent WO2019107987A1, with IC50 values of 21 nM, 30 nM and 392 nM for C-RAF 340D/Y341D, B-RAFV600E and B-RAFWT, respectively.
  • HY-115933
    EGFR/BRAF-IN-1
    		Inhibitor
    EGFR/BRAF-IN-1 (compound 21), a 2,3-dihydropyrazino[1,2-a]indole-1,4-dione derivative, is a potent EGFR/BRAF inhibitor with an IC50 of 45 nM for BRAFV600E. EGFR/BRAF-IN-1 inhibits cancer cell proliferation (GI50=35 nM). EGFR/BRAF-IN-1 shows good antioxidant activity.
  • HY-13810
    PF-04880594
    		Inhibitor
    PF-04880594 is a potent and selective RAF inhibitor. PF-04880594 inhibits both wild-type and mutant BRAF and CRAF. PF-04880594 shows antitumor activity.
  • HY-178995
    BRAFV600E-IN-3
    		Inhibitor
    BRAFV600E-IN-3 (Compound AV05) is a BRAFV600E inhibitor with an IC50 value of 0.89 μM. BRAFV600E-IN-3 inhibits the proliferation of melanoma cells. BRAFV600E-IN-3 can be used for the study of melanoma.
  • HY-150250
    B-Raf IN 13
    		Inhibitor
    B-Raf IN 13 is a BRAF inhibitor with an IC50 of 3.55 nM in BRAF V600E enzyme assay. B-Raf IN 13 has anticaner effects (WO2020261156A1, Example 74).
  • HY-146492
    VEGFR-2/BRAF-IN-2
    		Inhibitor
    VEGFR-2/BRAF-IN-2 (Compound 4a) is a dual VEGFR-2 and BRAF kinases inhibitor with IC50 values of 0.111, 0.089 and 0.071 µM against VEGFR-2, BRAFV600E and BRAFWT, respectively. VEGFR-2/BRAF-IN-2 induces apoptosis and arrests the cell cycle mainly in the G1 phase.
  • HY-175831
    BRAFV600E-IN-2
    		Inhibitor
    BRAFV600E-IN-2 is a BRAF V600E inhibitor with IC50 ≤10 nM. BRAFV600E-IN-2 has anti-tumor activity.
  • HY-149517
    EGFR/BRAFV600E-IN-2
    		Inhibitor
    EGFR/BRAFV600E-IN-2 (compound 3g) is a potential multi-target inhibitor of EGFR, BRAFV600E, and EGFRT790M, and an inducer of apoptosis. EGFR/BRAFV600E-IN-2 can activate caspase-3, 8, and Bax, and downregulate the anti-apoptotic protein Bcl2, inducing apoptosis. EGFR/BRAF V600E-IN-2 also has antioxidant activity and DPPH free radical scavenging potency.
  • HY-147854
    B-Raf IN 9
    		Inhibitor
    B-Raf IN 9 (compound 8b) is a potent B-Raf inhibitor, with an IC50 of 24.79 nM. B-Raf IN 9 induces apoptosis and shows cell cycle arrest at G2/M phase. B-Raf IN 9 exhibits potent antitumor activity against human prostate cancer PC-3 cell line, with an IC50 of 7.83 µM.
  • HY-175435
    CST905
    		Degrader
    CST905 is a potent PROTAC degrader of BRAF-V600E with a DC50 of 18 nM. CST905 is suitable for cancer research.
Cat. No. Product Name / Synonyms Application Reactivity