Molecular Weight: 436.49 g/mol

STAT3-IN-13 Chemical Structure
Chemical Structure
Check the STAT3-IN-13 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 87 mg/mL (199.31 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).

Chemical Information

IUPAC Name 3-cyano-N-(4-methoxyphenyl)-2-[(1-methylpyrazole-4-carbonyl)amino]-5,7-dihydro-4H-thieno[2,3-c]pyridine-6-carboxamide
CAS Number 2248552-86-3
Molecular Formula C21H20N6O3S
Molecular Weight (MW) 436.49
SMILES N#CC1=C(SC2=C1CCN(C2)C(NC3=CC=C(C=C3)OC)=O)NC(C(C=N4)=CN4C)=O
InChIKey WVYHDFDOBCBKGI-UHFFFAOYSA-N

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