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