heparan sulphate was found only in fraction i ( mol . wt 2 x 10 ( 6 ) or greater ) , together with hyaluronic acid and chondroitin-4-sulphate , these being present in all of the glycosaminoglycan-containing fractions ( i-iv ) .
C0019143
heparan sulphate
C0017973
glycosaminoglycan