Sordarin sodium is primarily used in research and development within the field of antifungal agents. It exhibits strong inhibitory activity against fungal protein synthesis, making it a valuable compound for studying fungal infections and developing potential antifungal therapies. Researchers utilize it to explore mechanisms of action and resistance in pathogenic fungi, aiding in the discovery of new treatment options for fungal diseases. Its application is largely confined to laboratory settings, where it serves as a tool for understanding fungal biology and evaluating the efficacy of novel antifungal compounds.