CAS No. 1702259-66-2

Batch: Purity:98.91
H3B-6527 Chemical Structure
Chemical Structure
Check the H3B-6527 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[2-[[6-[(2,6-dichloro-3,5-dimethoxyphenyl)carbamoyl-methylamino]pyrimidin-4-yl]amino]-5-(4-ethylpiperazin-1-yl)phenyl]prop-2-enamide
CAS Number 1702259-66-2
Molecular Formula

C29H34Cl2N8O4

Molecular Weight (MW) 629.54
SMILES CCN1CCN(CC1)C2=CC(=C(C=C2)NC3=CC(=NC=N3)N(C)C(=O)NC4=C(C(=CC(=C4Cl)OC)OC)Cl)NC(=O)C=C
InChIKey MBWRLLRCTIYXDW-UHFFFAOYSA-N

Ordering Information

Biological Activity

H3B-6527 is a selective covalent inhibitor of FGFR4 (IC50 <1.2 nM), displaying at least 250-fold selectivity over FGFR1 (IC50 320 nM), FGFR2 (IC50 1290 nM), and FGFR3 (IC50 1060 nM). By selectively targeting FGFR4, H3B-6527 blocks FGF19-driven FGFR4 signaling and suppresses downstream ERK phosphorylation. This inhibition impairs cell proliferation and tumor growth in hepatocellular carcinoma models. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 50 mg/mL (79.42 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).

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Note: Technical data last updated: Sep 1, 2026.