preferred_name: 2-iminobutanoate + H2O <=> 2-oxobutanoate + NH4(+)
preferred_name_lc: 2-iminobutanoate + h2o <=> 2-oxobutanoate + nh4(+)
label: 2-iminobutanoate + H2O <=> 2-oxobutanoate + NH4(+)
label_lc: 2-iminobutanoate + h2o <=> 2-oxobutanoate + nh4(+)