CAS No. 1218779-75-9

Batch: Purity:99.77
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Apatinib (YN968D1) mesylate Chemical Structure
Chemical Structure
Check the Apatinib (YN968D1) mesylate product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[4-(1-cyanocyclopentyl)phenyl]-2-(pyridin-4-ylmethylamino)pyridine-3-carboxamide;methanesulfonic acid
CAS Number 1218779-75-9
Molecular Formula

C25H27N5O4S
Molecular Weight (MW) 493.58
SMILES C[S](O)(=O)=O.O=C(NC1=CC=C(C=C1)C2(CCCC2)C#N)C3=CC=CN=C3NCC4=CC=NC=C4
InChIKey FYJROXRIVQPKRY-UHFFFAOYSA-N

Biological Activity

Apatinib mesylate (YN968D1) is a potent, selective tyrosine kinase inhibitor targeting VEGFR-2 (IC50 = 1 nM), Ret (IC50 = 13 nM), c-Kit (IC50 = 429 nM), and c-Src (IC50 = 530 nM). By suppressing VEGFR-2 signaling, it inhibits VEGF-stimulated endothelial cell migration, proliferation, and capillary-like tube formation. Furthermore, apatinib blocks downstream pro-survival signaling pathways, suppressing tumor angiogenesis and inducing apoptosis and autophagy in cancer cells. [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 99 mg/mL (200.57 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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Reference

[1] Encyclopedia of Cancer. 2011:173-173.

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