preferred_name: iodide(in) + 2 Na(+)(in) => iodide(out) + 2 Na(+)(out)
preferred_name_lc: iodide(in) + 2 na(+)(in) => iodide(out) + 2 na(+)(out)
label: iodide(in) + 2 Na(+)(in) => iodide(out) + 2 Na(+)(out)
label_lc: iodide(in) + 2 na(+)(in) => iodide(out) + 2 na(+)(out)