Cromolyn is a chromone complex that acts as a mast cell stabilizer, preventing the release of histamine. Its mechanism of action is thought to involve an interference with the antigen-stimulated calcium transport across the mast cell membrane, thereby inhibiting mast cell release of histamine, leukotrienes, and other substances that cause hypersensitivity reactions.

Cromolyn (sodium salt hydrate)

PBS (pH 7.2):5 mg/mL
DMSO:1 mg/mL
Powder: -20°C for 3 years
In solvent: -80°C for 2 years