preferred_name: 5,6-dihydrouracil + NAD(+) => uracil + NADH + H(+)
preferred_name_lc: 5,6-dihydrouracil + nad(+) => uracil + nadh + h(+)
label: 5,6-dihydrouracil + NAD(+) => uracil + NADH + H(+)
label_lc: 5,6-dihydrouracil + nad(+) => uracil + nadh + h(+)