preferred_name: menaquinol-8 + fumarate <=> menaquinone-8 + succinate
preferred_name_lc: menaquinol-8 + fumarate <=> menaquinone-8 + succinate
label: menaquinol-8 + fumarate <=> menaquinone-8 + succinate
label_lc: menaquinol-8 + fumarate <=> menaquinone-8 + succinate