C11-HSL is widely used in microbial communication studies, particularly in quorum sensing research. It plays a crucial role in regulating bacterial behaviors such as biofilm formation, virulence factor production, and bioluminescence. In agriculture, it is explored for its potential to manipulate plant-microbe interactions, enhancing plant resistance to pathogens. Additionally, C11-HSL is studied in medical research for its ability to disrupt bacterial signaling, offering a novel approach to combat antibiotic-resistant infections. Its applications also extend to industrial settings, where it is used to control microbial processes in bioreactors and wastewater treatment systems.