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