preferred_name: phenyl sulfate + 2-naphthol => 2-naphthyl sulfate + phenol
preferred_name_lc: phenyl sulfate + 2-naphthol => 2-naphthyl sulfate + phenol
label: phenyl sulfate + 2-naphthol => 2-naphthyl sulfate + phenol
label_lc: phenyl sulfate + 2-naphthol => 2-naphthyl sulfate + phenol