Dextran is a type of polysaccharide that is derived from sucrose. Synonyms for dextran include glucose polymer, glucomannan, and polyglucose. Additionally, dextran has different molecular weight and can be classified into low molecular weight dextran, medium molecular weight dextran, and high molecular weight dextran. It is used in various industries such as medical, food, and cosmetic. Dextran can also be used as a blood plasma expander in cases of hypovolemia. Despite its different synonyms, dextran is mostly known for its role in improving human health by inhibiting blood clotting and promoting blood flow.