CAS No. 65141-46-0

Batch: Purity:99.92
Nicorandil Chemical Structure
Chemical Structure
Check the Nicorandil product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 65141-46-0
Molecular Formula

C8H9N3O4

Molecular Weight (MW) 211.17
SMILES C1=CC(=CN=C1)C(=O)NCCO[N+](=O)[O-]

Ordering Information

Biological Activity

Nicorandil is a potassium channel activator and nitric oxide donor that stimulates soluble guanylate cyclase to increase intracellular cyclic GMP levels. By activating ATP-sensitive potassium channels and increasing cGMP formation, nicorandil induces dephosphorylation of the myosin light chain in vascular smooth muscle cells. This dual mechanism relaxes vascular smooth muscle tissue, resulting in comprehensive arterial and venous vasodilation. [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 42 mg/mL (198.89 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 34 mg/mL
Water 21 mg/mL
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.