preferred_name: 2-aminobut-2-enoate => 1-aminocyclopropane-1-carboxylate
preferred_name_lc: 2-aminobut-2-enoate => 1-aminocyclopropane-1-carboxylate
label: 2-aminobut-2-enoate => 1-aminocyclopropane-1-carboxylate
label_lc: 2-aminobut-2-enoate => 1-aminocyclopropane-1-carboxylate