596364 Disclosed herein are compositions comprising at least 90% by weight a compound of formula I, wherein R1 and R2 are each independently H or a hydrolysable group, and their use in the treatment of and ischemia-reperfusion injury, such as cerebrovascular ischemiareperfusion injury, a renal ischemia-reperfusion injury, a hepatic ischemiareperfusion injury, an ischemia-reperfusion cardiomyopathy, a cutaneous ischemiareperfusion injury, a bowel ischemia-reperfusion injury, an intestinal ischemia-reperfusion injury, a gastric ischemia-reperfusion injury, a pulmonary ischemia-reperfusion injury, a pancreatic ischemia-reperfusion injury, a skeletal muscle ischemia-reperfusion injury, an abdominal muscle ischemia-reperfusion injury, a limb ischemia-reperfusion injury, ischemiareperfusion colitis, a mesenteric ischemia-reperfusion injury and a silent ischemiareperfusion injury.