Glutaminyl Cyclase Inhibitor 3 is primarily used in research focused on neurodegenerative diseases, particularly Alzheimer's disease. It works by inhibiting the enzyme glutaminyl cyclase, which plays a role in the formation of toxic amyloid plaques in the brain. By blocking this enzyme, the compound helps reduce the accumulation of these plaques, potentially slowing disease progression. It is also studied for its potential in treating other conditions where glutaminyl cyclase activity is implicated, such as inflammation and certain types of cancer. Its application is largely confined to preclinical studies, where it aids in understanding disease mechanisms and developing therapeutic strategies.