DNQX disodium salt is widely used in neuroscience research as a selective antagonist for AMPA and kainate receptors. It helps in studying the role of these receptors in synaptic transmission and plasticity. By blocking these receptors, researchers can investigate their contribution to excitatory signaling in the brain. This chemical is particularly valuable in electrophysiological experiments to understand neuronal excitability and synaptic function. It is also used in studies related to neurodegenerative diseases, epilepsy, and other conditions involving glutamate receptor dysfunction. Additionally, DNQX disodium salt aids in exploring mechanisms of neuroprotection and potential therapeutic targets for neurological disorders.