CAS No. 5373-11-5

Batch: Purity:99
Luteoloside Chemical Structure
Chemical Structure
Check the Luteoloside product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-(3,4-dihydroxyphenyl)-5-hydroxy-7-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one
CAS Number 5373-11-5
Molecular Formula

C21H20O11

Molecular Weight (MW) 448.38
SMILES C1=CC(=C(C=C1C2=CC(=O)C3=C(C=C(C=C3O2)OC4C(C(C(C(O4)CO)O)O)O)O)O)O
InChIKey PEFNSGRTCBGNAN-QNDFHXLGSA-N

Ordering Information

Biological Activity

Luteoloside is a natural flavonoid that acts as an inhibitor of enterovirus 71 (EV71) 3C protease. By targeting the viral 3C protease, it disrupts polyprotein cleavage and inhibits viral replication. Additionally, luteoloside exhibits broad anti-microbial and anti-cancer activities, modulating downstream signaling pathways such as NF-kB to suppress tumor cell proliferation and attenuate viral infection phenotypes.

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 90 mg/mL (200.72 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in 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).
Note: Technical data last updated: Sep 1, 2026.