CAS No. 82159-09-9

Batch: Purity:99.9
Epalrestat Chemical Structure
Chemical Structure
Check the Epalrestat product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-[(5Z)-5-[(E)-2-methyl-3-phenylprop-2-enylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid
CAS Number 82159-09-9
Molecular Formula

C15H13NO3S2

Molecular Weight (MW) 319.4
SMILES CC(=CC1=CC=CC=C1)C=C2C(=O)N(C(=S)S2)CC(=O)O
InChIKey CHNUOJQWGUIOLD-NFZZJPOKSA-N

Ordering Information

Biological Activity

Epalrestat is an aldose reductase inhibitor with an IC50 of. It targets the polyol pathway by inhibiting the enzyme-mediated conversion of glucose to sorbitol, leading to reduced intracellular sorbitol accumulation and diminished osmotic stress. Downstream, this inhibition mitigates oxidative stress and suppresses inflammatory signaling pathways, thereby protecting cells from hyperglycemia-induced cellular dysfunction. [1]

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 2 mg/mL (6.26 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).

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Note: Technical data last updated: Sep 1, 2026.