Table 3.

Proportions of 4- and 6-sulfated N-acetil β-galactosamine in bovine and shark chondroitin sulfates (CS) based on signals of 2D ¹H–¹³C HSQC spectra (see Figure 5).

	Bovine CS	Shark CS
4-sulfated β-GalNAc a	68%	16%
6-sulfated β-GalNAc b	32%	84%

^a Signal at 4.74/79.2 ppm in the 2D ¹H–¹³C HSQC spectra (see Figure 5); ^b Signal at 4.21/70.2 ppm in the 2D ¹H–¹³C HSQC spectra (see Figure 5).