preferred_name: N(4)-acetylcytosine + H2O <=> cytosine + acetate + H(+)
preferred_name_lc: n(4)-acetylcytosine + h2o <=> cytosine + acetate + h(+)
label: N(4)-acetylcytosine + H2O <=> cytosine + acetate + H(+)
label_lc: n(4)-acetylcytosine + h2o <=> cytosine + acetate + h(+)