preferred_name: xanthurenate + H2O => 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate
preferred_name_lc: xanthurenate + h2o => 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate
label: xanthurenate + H2O => 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate
label_lc: xanthurenate + h2o => 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate