MTEP is a potent, non-competitive and highly selective mGluR5 antagonist, with an IC50 of 5 nM and a Ki of 16 nM. MTEP shows antidepressant and anxiolytic-like effects. MTEP can be used for Parkinson's disease research[1][2][3][4]. MTEP is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.