Almitrine mesylate

Almitrine mesylate (CAS No.: 29608-49-9) is a synthetic small molecule pharmacological probe broadly classified in respiratory control and chemosensory biology research, with primary use as a peripheral chemoreceptor agonist tool compound for investigating oxygen sensing mechanisms in carotid body related systems and associated neurophysiological signaling networks. Current evidence indicates that its core research mechanism involves selective inhibition of calcium dependent potassium channel activity, including reduced channel opening probability in chemoreceptor cells, thereby modulating membrane excitability and downstream stimulus transduction relevant to hypoxic signaling; reported in vitro potency is generally described within the submicromolar to low micromolar range, including approximately low submicromolar activity in channel focused assays, which supports its utility in concentration controlled mechanistic studies. In biomedical research and early drug discovery settings, this molecule is commonly applied in cell based electrophysiology, ion channel pharmacology workflows, and animal model investigations of peripheral chemosensory responses, while also serving as a reference modulator in screening paradigms designed to map target engagement, pathway sensitivity, and structure activity trends among related compounds; the concentrations or doses used in experiments typically depend on specific experimental designs, biological context, assay platform, and research objectives, and all use is restricted to nonclinical laboratory research contexts only.