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
Usnic acid
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| IUPAC Name | 2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3-dione | |
|---|---|---|
| CAS Number | 125-46-2 | |
| Molecular Formula |
C18H16O7 |
|
| Molecular Weight (MW) | 344.32 | |
| SMILES | CC1=C(C(=C2C(=C1O)C3(C(=CC(=O)C(C3=O)C(=O)C)O2)C)C(=O)C)O | |
| InChIKey | CUCUKLJLRRAKFN-UHFFFAOYSA-N |
|
Concentration
Volume
Mass
|
|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
4 mg/mL
(11.61 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
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).
Note: Technical data last updated: Sep 1, 2026.