preferred_name: all-trans-3,4-didehydroretinol + AH2 => all-trans-3,4-didehydro-13,14-dihydroretinol + A
preferred_name_lc: all-trans-3,4-didehydroretinol + ah2 => all-trans-3,4-didehydro-13,14-dihydroretinol + a
label: all-trans-3,4-didehydroretinol + AH2 => all-trans-3,4-didehydro-13,14-dihydroretinol + A
label_lc: all-trans-3,4-didehydroretinol + ah2 => all-trans-3,4-didehydro-13,14-dihydroretinol + a