Idebenone (IDBN) is a short-chain quinine analogue acts as a protent free-radicalscavenger and a novel kind of specific medicine for the treatment of Alzheimer's disease andmental symptoms, it could improve brain function, have a mild antihypertensive effect.Besides it could be used in clinical treatment which is a kind of intelligent promote medicine.Now more and more is widely used in the cosmetics because it's strong antioxidant andanti-aging effect. But there are some problems in pharmaceutical producti...