MRS2693 ammonium is the ammonium dalt form of MRS2693. MRS2693 ammonium is a selective agonist for P2Y6 with an EC 50 of 0.015 μM. MRS2693 ammonium protects C2C12 skeletal muscle cells from TNFα-induced apoptosis. MRS2693 ammonium reduces the activation of NF-kB, activates the ERK1/2 pathway, and has a cytoprotective effect on mouse ischemia-reperfusion injury model.