preferred_name: 15-cis-phytoene + 4 A = all-trans-lycopene + 4 AH2
preferred_name_lc: 15-cis-phytoene + 4 a = all-trans-lycopene + 4 ah2
label: 15-cis-phytoene + 4 A = all-trans-lycopene + 4 AH2
label_lc: 15-cis-phytoene + 4 a = all-trans-lycopene + 4 ah2