Catalog No. size PriceQuantity
M6481-2 2mg solid $81
M6481-10 10mg solid $320


BLU-9931 is a potent and irreversible small-molecule inhibitor of FGFR4, as a targeted therapy to treat patients with HCC whose tumors have an activated FGFR4 signaling pathway. BLU-9931 is exquisitely selective for FGFR4 versus other FGFR family members and all other kinases. BLU-9931 shows remarkable antitumor activity in mice bearing an HCC tumor xenograft that overexpresses FGF19 due to amplification as well as a liver tumor xenograft that overexpresses FGF19 mRNA but lacks FGF19 amplification. Approximately one third of patients with HCC whose tumors express FGF19 together with FGFR4 and its coreceptor klotho β (KLB) could potentially respond to treatment with an FGFR4 inhibitor.

Product information

CAS Number: 1538604-68-0

Molecular Weight: 509.38

Formula: C26H22Cl2N4O3


BLU 9931



Chemical Name: N-(2-((6-(2,6-dichloro-3,5-dimethoxyphenyl)quinazolin-2-yl)amino)-3-methylphenyl)acrylamide

Smiles: CC1=CC=CC(NC(=O)C=C)=C1NC1=NC2=CC=C(C=C2C=N1)C1C(Cl)=C(C=C(OC)C=1Cl)OC


InChi: InChI=1S/C26H22Cl2N4O3/c1-5-21(33)30-18-8-6-7-14(2)25(18)32-26-29-13-16-11-15(9-10-17(16)31-26)22-23(27)19(34-3)12-20(35-4)24(22)28/h5-13H,1H2,2-4H3,(H,30,33)(H,29,31,32)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO, not in water

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

BLU-9931 inhibits proliferation of HCC cell lines that express an intact FGFR4 signaling complex, with EC50s of 0.07 μM, 0.11 μM and 0.02 μM for Hep 3B, HuH7 and JHH7 cells, respectively. BLU-9931 (0.3-300 nM; 1 hour; MDA-MB-453 and Hep 3B cells) treatment demonstrates potent, dose-dependent reduction of phosphorylation of FGFR4 signaling pathway components, including fibroblast growth factor receptor substrate 2 (FRS2), MAPK, and AKT in MDA-MB-453 cells. BLU-9931 shows dose-dependent inhibition of the signaling cascade downstream of FGFR4. BLU-9931 exhibits potent inhibition of phosphorylation of the FGFR4 pathway components in Hep 3B cells. BLU-9931 treatment leads to induction of caspase-3/7 activity, indicative of induction of apoptosis that results in inhibition of signaling downstream of FGFR4. BLU-9931 (100 nM; 0 -24 hours; Hep 3B cells) treatment increases CYP7A1 mRNA expression and the expression of the proliferative marker EGR1 is inhibited.

In Vivo:

BLU-9931 (10-100 mg/kg; oral administration; twice every day; for 21 days; mice) treatment demonstrates antitumor activity in HCC xenograft models.


  1. Packer LM, Pollock PM. Paralog-Specific Kinase Inhibition of FGFR4: Adding to the Arsenal of Anti-FGFR Agents. Cancer Discov. 2015 Apr;5(4):355-7. doi: 10.1158/2159-8290.CD-15-0246. PubMed PMID: 25847957.
  2. Hagel M, Miduturu C, Sheets M, Rubin N, Weng W, Stransky N, Bifulco N, Kim JL, Hodous B, Brooijmans N, Shutes A, Winter C, Lengauer C, Kohl NE, Guzi T. First Selective Small Molecule Inhibitor of FGFR4 for the Treatment of Hepatocellular Carcinomas with an Activated FGFR4 Signaling Pathway. Cancer Discov. 2015 Apr;5(4):424-37. doi: 10.1158/2159-8290.CD-14-1029. Epub 2015 Mar 16. PubMed PMID: 25776529.

Products are for research use only. Not for human use.

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