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