Sulfogaiacol

Sulfogaiacol (CAS No.: 1321-14-8) is a phenolic derivative belonging to the guaiacol sulfonate class, widely utilized as a small-molecule tool compound in respiratory pharmacology research. It exhibits antitussive and expectorant-like properties in experimental systems, with evidence suggesting that its mechanism of action is associated with modulation of respiratory tract mucosal secretions and facilitation of mucus clearance, potentially influencing cough reflex sensitivity and airway surface hydration. Although precise molecular targets have not been fully elucidated, its activity is thought to involve regulation of epithelial secretory pathways and mucociliary function, making it relevant for investigating signaling processes linked to airway inflammation and mucus hypersecretion. In vitro and in vivo studies typically employ concentrations in the micromolar range, depending on the assay design, to evaluate its effects on mucus production, epithelial cell responsiveness, and airway defense mechanisms. Sulfogaiacol is therefore commonly applied in cell-based models of airway epithelial function and in animal models of acute respiratory irritation or infection to explore the pharmacological modulation of mucus dynamics and cough-associated pathways, supporting broader efforts in drug discovery focused on respiratory tract disorders.