H2S is an important signal molecule involved in cellular signal transduction in the nervous system, circulatory system and many organs. H2S is produced by three synthetic lyase, cysteine synthetase and 3-mercaptopyruvate sulfur pathways: cysteine from development, regulate multiple biological processes It can transferase. angiogenesis, nerve conduction to protein synthesis. It has the activity of vasodilating, angiogenic and anti-atherosclerotic, and can protect the heart, kidneys and other organs from ischemia or reperfusion injury.