preferred_name: 15-cis-phytoene + 3 A => all-trans-neurosporene + 3 AH2
preferred_name_lc: 15-cis-phytoene + 3 a => all-trans-neurosporene + 3 ah2
label: 15-cis-phytoene + 3 A => all-trans-neurosporene + 3 AH2
label_lc: 15-cis-phytoene + 3 a => all-trans-neurosporene + 3 ah2