SMILES:

CC(C)(C1=NC=C(C=C1)C2=CN=C3C(=N2)N(C(=O)CN3)C4CCC(CC4)OC)O
Onatasertib (CC 223) Chemical Structure
Chemical Structure
Check the Onatasertib (CC 223) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 3-[6-(2-hydroxypropan-2-yl)-3-pyridinyl]-5-(4-methoxycyclohexyl)-7,8-dihydropyrazino[2,3-b]pyrazin-6-one
CAS Number 1228013-30-6
Molecular Formula

C21H27N5O3
Molecular Weight (MW) 397.47
SMILES CC(C)(C1=NC=C(C=C1)C2=CN=C3C(=N2)N(C(=O)CN3)C4CCC(CC4)OC)O
InChIKey UFKLYTOEMRFKAD-UHFFFAOYSA-N

How to Prepare Stock Solution?

Concentration Volume Mass
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🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 79 mg/mL (198.75 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 79 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.