Dicyclohexyl carbodiimide (DCC) is also used in the synthesis and dehydration of amikacin and amino acids, is a good low temperature biochemical dehydrating agent, and is also used in the synthesis of acids, anhydrides, aldehydes, ketones, etc. When the product is used as a dehydration and shrinkage mixture, it can be prepared after a short reaction at room temperature, and the reaction product is dicyclohexylurea