Brassinazole is primarily utilized in plant biology research to study the effects of brassinosteroids, a class of plant hormones. It acts as a specific inhibitor of brassinosteroid biosynthesis, making it a valuable tool for understanding the role of these hormones in plant growth and development. By applying brassinazole, researchers can induce brassinosteroid deficiency in plants, allowing them to observe the resulting phenotypic changes, such as altered leaf morphology, reduced stem elongation, and impaired reproductive development. This chemical is also used in agricultural studies to explore potential strategies for manipulating plant growth and stress responses, ultimately aiding in the development of crops with improved yield and resilience.