Cordycepic acid is one of the main active ingredients of Cordyceps militaris. Cordyceps acid is essentially called D-mannitol and belongs to the class of sugar alcohols. English name: D-Mannitol, also known as hexahexanol D-mannitol; D-xylitol; mannitol; D-mannose Alcohol; pipermannose etc. It is slightly sweet, colorless or white crystalline powder similar to sucrose, with the appearance and sweetness of sucrose. It is a kind of hexanol, a kind of dehydrating agent. It can be used as diuretic or sweetener.