MRS2500 (tetraammonium)

MRS2500 tetraammonium is a potent, selective and stable antagonist of the P2Y1 receptor (Ki=0.78 nM for recombinant human P2Y1 receptor). MRS2500 tetraammonium inhibits the ADP-induced aggregation of human platelets with an IC50 value of 0.95 nM. Antithrombotic activity[1][2][3].