preferred_name: an aliphatic alcohol + acetate + H(+) => an acetyl ester + H2O
preferred_name_lc: an aliphatic alcohol + acetate + h(+) => an acetyl ester + h2o
label: an aliphatic alcohol + acetate + H(+) => an acetyl ester + H2O
label_lc: an aliphatic alcohol + acetate + h(+) => an acetyl ester + h2o