preferred_name: protoporphyrin IX + 3 H2O2 => protoporphyrinogen IX + 3 O2
preferred_name_lc: protoporphyrin ix + 3 h2o2 => protoporphyrinogen ix + 3 o2
label: protoporphyrin IX + 3 H2O2 => protoporphyrinogen IX + 3 O2
label_lc: protoporphyrin ix + 3 h2o2 => protoporphyrinogen ix + 3 o2