preferred_name: all-trans-zeta-carotene + 2 AH2 => 15-cis-phytoene + 2 A
preferred_name_lc: all-trans-zeta-carotene + 2 ah2 => 15-cis-phytoene + 2 a
label: all-trans-zeta-carotene + 2 AH2 => 15-cis-phytoene + 2 A
label_lc: all-trans-zeta-carotene + 2 ah2 => 15-cis-phytoene + 2 a