preferred_name: 7,8-dihydromethanopterin + AH2 => 5,6,7,8-tetrahydromethanopterin + A
preferred_name_lc: 7,8-dihydromethanopterin + ah2 => 5,6,7,8-tetrahydromethanopterin + a
label: 7,8-dihydromethanopterin + AH2 => 5,6,7,8-tetrahydromethanopterin + A
label_lc: 7,8-dihydromethanopterin + ah2 => 5,6,7,8-tetrahydromethanopterin + a