bovine corneas were incubated with [ u- ( 14 ) c ] -glucose in the presence and in the absence of the nucleotide , and the radioactivity of chondroitin , chondroitin sulphate and keratan sulphate , as well as of their monosaccharide constituents , was determined .
C0008454
chondroitin
C0008466
chondroitin sulphate