Enoxapin sodium is a mucopolysaccharide extracted from the intestinal mucosa of pigs. It is chemically named 2-sulfatyl-α-l-iduronic acid -β- (1β-) -2-deoxy2-n-sulfatyl-6-o-α-D-glucose, and its non-reducing terminal is 4-enyl-pyranose -glucuronolactone. The average molecular weight is 3800 ~ 5000Da and has the property of 4500 Da.

　　Enoxaparin sodium is a small molecular weight fragment obtained from the classification or degradation of heparin. The process of the raw material of enoxaparin sodium is heparin sodium, and the purpose of extraction is achieved through a series of reactions and certain separation methods.

　　The bulk drug of enoxaparin sodium is white or white like powder, which is highly moisture-inducing. Insoluble in ethanol, acetone and other organic solvents, easily soluble in water. The molecule is acidic and is polyanion, which can react with cations to form salts. The average molecular weight is 3800 ~ 5000Da.