CAS No. 1254473-64-7

Batch: Purity:98.78
LY2874455 Chemical Structure
Chemical Structure
Check the LY2874455 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-[4-[(E)-2-[5-[(1R)-1-(3,5-dichloro-4-pyridinyl)ethoxy]-1H-indazol-3-yl]ethenyl]pyrazol-1-yl]ethanol
CAS Number 1254473-64-7
Molecular Formula

C21H19Cl2N5O2

Molecular Weight (MW) 444.31
SMILES CC(C1=C(C=NC=C1Cl)Cl)OC2=CC3=C(C=C2)NN=C3C=CC4=CN(N=C4)CCO
InChIKey GKJCVYLDJWTWQU-CXLRFSCWSA-N

Ordering Information

Biological Activity

LY2874455 is a pan-FGFR inhibitor that targets FGFR1, FGFR2, FGFR3, FGFR4, and VEGFR2. By blocking FGFR kinase activity, LY2874455 attenuates downstream FGF signaling pathways, suppressing ERK phosphorylation, cellular proliferation, and preclinical tumor growth across various cancer 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 88 mg/mL (198.05 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 88 mg/mL
Water 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.