preferred_name: 2-(5-oxo-2,5-dihydrofuran-2-ylidene)acetate + H2O = 4-oxohex-2-enedioate + H(+)
preferred_name_lc: 2-(5-oxo-2,5-dihydrofuran-2-ylidene)acetate + h2o = 4-oxohex-2-enedioate + h(+)
label: "carboxymethylenebutenolidase"
label_lc: "carboxymethylenebutenolidase"