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(+)