This enzyme belongs to the family of hydrolases, specifically those acting on sulfuric ester bonds. The systematic name is 4-deoxy-β-D-gluc-4-enuronosyl-(1→3)-N-acetyl-D-galactosamine-6-sulfate 6-sulfohydrolase.
References
^Yamagata T, Saito H, Habuchi O, Suzuki S (1968). "Purification and properties of bacterial chondroitinases and chondrosulfatases". J. Biol. Chem. 243 (7): 1523–35. PMID5647268.