Succinate/succinate receptor antagonist 1 (compound 7a) is a succinate/succinate receptor antagonist. Succinate/succinate receptor antagonist 1 blocks succinate signaling in gingival tissue. Succinate/succinate receptor antagonist 1 inhibits the activation of succinate receptor 1 (SucnRl) with an IC50 value of 20 μΜ. Succinate/succinate receptor antagonist 1 can be used for the research of periodontal disease[1].