preferred_name: bisanhydrobacterioruberin + 2 H2O => bacterioruberin
preferred_name_lc: bisanhydrobacterioruberin + 2 h2o => bacterioruberin
label: bisanhydrobacterioruberin + 2 H2O => bacterioruberin
label_lc: bisanhydrobacterioruberin + 2 h2o => bacterioruberin