Molecular Weight: 454.53 g/mol

TAS-116 (Pimitespib) Chemical Structure
Chemical Structure
Check the TAS-116 (Pimitespib) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

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 91 mg/mL (200.2 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 11 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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Chemical Information

IUPAC Name 3-ethyl-4-[4-[4-(1-methylpyrazol-4-yl)imidazol-1-yl]-3-propan-2-ylpyrazolo[3,4-b]pyridin-1-yl]benzamide
CAS Number 1260533-36-5
Molecular Formula

C25H26N8O

Molecular Weight (MW) 454.53
SMILES CCC1=C(C=CC(=C1)C(=O)N)N2C3=NC=CC(=C3C(=N2)C(C)C)N4C=C(N=C4)C5=CN(N=C5)C
InChIKey NVVPMZUGELHVMH-UHFFFAOYSA-N

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