CAS No. 742112-33-0

Batch: Purity:99.22
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OSU-03012 (AR-12) Chemical Structure
Chemical Structure
Check the OSU-03012 (AR-12) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-amino-N-[4-[5-phenanthren-2-yl-3-(trifluoromethyl)pyrazol-1-yl]phenyl]acetamide
CAS Number 742112-33-0
Molecular Formula

C26H19F3N4O
Molecular Weight (MW) 460.45
SMILES C1=CC=C2C(=C1)C=CC3=C2C=CC(=C3)C4=CC(=NN4C5=CC=C(C=C5)NC(=O)CN)C(F)(F)F
InChIKey YULUCECVQOCQFQ-UHFFFAOYSA-N

Ordering Information

Biological Activity

OSU-03012 (AR-12) is a derivative of celecoxib that acts as a potent inhibitor of phosphoinositide-dependent kinase-1 (PDK-1) with an IC50 ofin a cell-free assay. By inhibiting PDK-1, OSU-03012 suppresses downstream AKT phosphorylation within the AKT/mTOR signaling pathway. This targeted inhibition results in reduced cellular proliferation and the induction of apoptosis in multiple cancer cell types. [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 92 mg/mL (199.8 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 6 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.