the chondroitin 4- and 6-sulfate proteoglycan monomers from two differentiating tissues ( brain and muscle of 14-day chick embryos ) were compared by indirect means , including use of chondroitinase ac , with the major class of cartilage chondroitin sulfate proteoglycan monomers .
C0008454
chondroitin
C0008466
chondroitin sulfate