preferred_name: L-tryptophan <=> (E)-3-(indol-3-yl)acrylate + NH4(+)
preferred_name_lc: l-tryptophan <=> (e)-3-(indol-3-yl)acrylate + nh4(+)
label: L-tryptophan <=> (E)-3-(indol-3-yl)acrylate + NH4(+)
label_lc: l-tryptophan <=> (e)-3-(indol-3-yl)acrylate + nh4(+)