Molecular Weight: 294.34 g/mol

Tanshinone IIA Chemical Structure
Chemical Structure
Check the Tanshinone IIA product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 1 mg/mL (3.39 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous 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 1,6,6-trimethyl-8,9-dihydro-7H-naphtho[1,2-g][1]benzofuran-10,11-dione
CAS Number 568-72-9
Molecular Formula

C19H18O3

Molecular Weight (MW) 294.34
InChIKey HYXITZLLTYIPOF-UHFFFAOYSA-N
Note: Technical data last updated: Sep 1, 2026.