topically applied heparin and heparan sulfate disaccharides , with the basic structure delta-4,5 uronyl- ( 1 -- -- 4 ) -glucosamine and bearing a sulfate at the c-6 position of the glucosamine residue , are antihemostatics as potent as heparin , producing uncontrollable hemorrhage from small blood vessels .
C0017718
glucosamine
C0017720
sulfate