A selective and potent GluK1 (formerly GluR5) kainate receptor agonist (Ki = 4.3 nM), inactive at GluK6 (formerly GluR6) (Ki > 1 mM) and only weakly active at AMPA receptors (GluA1-4) and the kainate receptors GluK5 (formerly KA-2) and GluK3 (formerly GluR7) (Ki values of 6 - 14 μM). Also available as part of the Kainate Receptor Tocriset?. Please refer to IUPHAR Guide to Pharmacology for the most recent naming conventions. Purity 98%. MW (observed): 228.25