preferred_name: 6-hydroxy-5-(4-sulfophenyl)azo-2-naphthalenesulfonic acid measurement
preferred_name_lc: 6-hydroxy-5-(4-sulfophenyl)azo-2-naphthalenesulfonic acid measurement
label: 6-hydroxy-5-(4-sulfophenyl)azo-2-naphthalenesulfonic acid measurement
label_lc: 6-hydroxy-5-(4-sulfophenyl)azo-2-naphthalenesulfonic acid measurement