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