2D Structure
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2D chemical structural formula diagram.

3D Structure
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This 3D model represents a theoretically simulated conformation and is for reference only.

Check the α-santonin product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo[g][1]benzofuran-2,8-dione
CAS Number 481-06-1
Molecular Formula

C15H18O3
Molecular Weight (MW) 246.3
SMILES CC1C2CCC3(C=CC(=O)C(=C3C2OC1=O)C)C
InChIKey XJHDMGJURBVLLE-BOCCBSBMSA-N

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 49 mg/mL (198.94 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
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.