preferred_name: 2-aminobut-2-enoate + hydrogen sulfide + H(+) => L-homocysteine
preferred_name_lc: 2-aminobut-2-enoate + hydrogen sulfide + h(+) => l-homocysteine
label: 2-aminobut-2-enoate + hydrogen sulfide + H(+) => L-homocysteine
label_lc: 2-aminobut-2-enoate + hydrogen sulfide + h(+) => l-homocysteine