CAS No. 528-48-3

Batch: Purity:99.33
Fisetin Chemical Structure
Chemical Structure
Check the Fisetin product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-(3,4-dihydroxyphenyl)-3,7-dihydroxychromen-4-one
CAS Number 528-48-3
Molecular Formula

C15H10O6

Molecular Weight (MW) 286.24
InChIKey XHEFDIBZLJXQHF-UHFFFAOYSA-N

Ordering Information

Biological Activity

Fisetin is a natural flavonoid that acts as a potent sirtuin-activating compound (STAC) and modulates SIRT1 activity. It functions as a caloric restriction mimetic, promoting longevity in model organisms including Saccharomyces cerevisiae and Drosophila melanogaster. Furthermore, fisetin exerts anti-inflammatory, anti-carcinogenic, and senolytic effects, suppressing pro-inflammatory signaling pathways and selectively clearing senescent cell populations in preclinical models. [1][2]

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 57 mg/mL (199.13 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 9 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.