Bright the being related to Learn of this Hair repairs the glucosaminoglycan of Ornaments, with 10IU/mg anti-factor II activity below, 10IU/mg anti-factor Xa activity below He Approximately 4.6 to 6.The average molecular weight (Mw, weight average molecular weight) of 9kDa. The bright It Gong Open System Prepare of this Hair repairs the method for the glucosaminoglycan of Ornaments Ji Qi Medical Drug purposes.本發明涉及化學修飾的葡糖胺聚糖,其具有10IU/mg以下的抗因子II活性、10IU/mg以下的抗因子Xa活性和約4.6至6.9kDa的平均分子量(Mw,重均分子量)。本發明還公開了製備修飾的葡糖胺聚糖的方法及其醫藥用途。