preferred_name: trans-urocanate + H2O => 4-imidazolone-5-propanoate
preferred_name_lc: trans-urocanate + h2o => 4-imidazolone-5-propanoate
label: trans-urocanate + H2O => 4-imidazolone-5-propanoate
label_lc: trans-urocanate + h2o => 4-imidazolone-5-propanoate