preferred_name: L-methionine + acetate => N-acetyl-L-methionine + H2O
preferred_name_lc: l-methionine + acetate => n-acetyl-l-methionine + h2o
label: L-methionine + acetate => N-acetyl-L-methionine + H2O
label_lc: l-methionine + acetate => n-acetyl-l-methionine + h2o