CAS No. 1108743-60-7

Batch: Purity:99.93
Entrectinib (Rxdx-101) Chemical Structure
Chemical Structure
Check the Entrectinib (Rxdx-101) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[5-[(3,5-difluorophenyl)methyl]-1H-indazol-3-yl]-4-(4-methylpiperazin-1-yl)-2-(oxan-4-ylamino)benzamide
CAS Number 1108743-60-7
Molecular Formula

C31H34F2N6O2

Molecular Weight (MW) 560.64
SMILES CN1CCN(CC1)C2=CC(=C(C=C2)C(=O)NC3=NNC4=C3C=C(C=C4)CC5=CC(=CC(=C5)F)F)NC6CCOCC6
InChIKey HAYYBYPASCDWEQ-UHFFFAOYSA-N

Ordering Information

Biological Activity

Entrectinib (RXDX-101) is an orally bioavailable pan-TRK, ROS1, and ALK inhibitor targeting TRKA, TRKB, TRKC, ROS1, and ALK. By suppressing these receptor tyrosine kinases, entrectinib disrupts downstream oncogenic signaling pathways, inhibiting cell proliferation and inducing autophagy and apoptosis in fusion-driven 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 100 mg/mL (178.36 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 100 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.