New products onheparin derivatives are released now! These heparin derivatives have been made from high quality heparin modified by standard chemical methods to selectively remove sulfate groups from C2 of Iduronate (2-O-desulfated heparin), C6 of glucosamine (6-O-desulfated heparin), N-sulfate of Glucosamine (N-desulfated Heparin), or completely remove N,O-sulfate groups (completely desulfated heparin). In completely desulfated re N-sulfated heparin all the sulfate groups have been almost completely removed and the free amino group has been modified by sulfation.