preferred_name: 4-(2-aminophenyl)-2,4-dioxobutanoate + L-cysteine => 2-oxo-3-sulfanylpropanoate + L-kynurenine
preferred_name_lc: 4-(2-aminophenyl)-2,4-dioxobutanoate + l-cysteine => 2-oxo-3-sulfanylpropanoate + l-kynurenine
label: 4-(2-aminophenyl)-2,4-dioxobutanoate + L-cysteine => 2-oxo-3-sulfanylpropanoate + L-kynurenine
label_lc: 4-(2-aminophenyl)-2,4-dioxobutanoate + l-cysteine => 2-oxo-3-sulfanylpropanoate + l-kynurenine