title: A continuous spectrophotometric assay for arylsulfatase activity, dependent on the formation of complexes between cupric ions and nitrocatechols.
mesh_terms: D000818:Animals; D001192:Arylsulfatases / Q000032:analysis*; D002396:Catechols; D003300:Copper; D008974:Mollusca / Q000201:enzymology; D013053:Spectrophotometry / Q000379:methods*; D013429:Sulfatases / Q000032:analysis*
chemical_list: D002396:Catechols; D003300:Copper; D013429:Sulfatases; D001192:Arylsulfatases; C021228:4-nitrocatechol sulfate; C001833:4-nitrocatechol