preferred_name: 3-cyano-L-alanine + hydrogen sulfide + H(+) => hydrogen cyanide + L-cysteine
preferred_name_lc: 3-cyano-l-alanine + hydrogen sulfide + h(+) => hydrogen cyanide + l-cysteine
label: 3-cyano-L-alanine + hydrogen sulfide + H(+) => hydrogen cyanide + L-cysteine
label_lc: 3-cyano-l-alanine + hydrogen sulfide + h(+) => hydrogen cyanide + l-cysteine