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