Metabolically stable agonist of Bradykinin B2 receptor for in vitro & in vivo preclinical research. The compound has various applications such as research into new drugs for ischemia reperfusion and opening of blood brain barrier for contrast/drug delivery. The B2R receptor agonist, also known as NG291 in the literature, is used in various research disciplines such as neurological disease, cancer, drug delivery, cardiovascular research, ischemia related organ damage, and reperfusion injury.