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