preferred_name: 2,2-dihydroxyspheroidene => spheroiden-2-one + H2O
preferred_name_lc: 2,2-dihydroxyspheroidene => spheroiden-2-one + h2o
label: 2,2-dihydroxyspheroidene => spheroiden-2-one + H2O
label_lc: 2,2-dihydroxyspheroidene => spheroiden-2-one + h2o