small amounts of chondroitin sulfate e disaccharides ( glcua -- -- galnac-4,6-diso4 ) were also detected in the chondroitinase abc digests of the purified rat mmc proteoglycans , but no nitrous acid-susceptible heparin/heparan sulfate glycosaminoglycans were detected .
C0019143
heparan sulfate
C0017973
glycosaminoglycans