preferred_name: a 2-amino-4-hydroxypteridine + H2O + H(+) = a 2,4-dihydroxypteridine + NH4(+)
preferred_name_lc: a 2-amino-4-hydroxypteridine + h2o + h(+) = a 2,4-dihydroxypteridine + nh4(+)
label: a 2-amino-4-hydroxypteridine + H2O + H(+) = a 2,4-dihydroxypteridine + NH4(+)
label_lc: a 2-amino-4-hydroxypteridine + h2o + h(+) = a 2,4-dihydroxypteridine + nh4(+)