preferred_name: (S)-carnitine(in) + Na(+)(in) => (S)-carnitine(out) + Na(+)(out)
preferred_name_lc: (s)-carnitine(in) + na(+)(in) => (s)-carnitine(out) + na(+)(out)
label: (S)-carnitine(in) + Na(+)(in) => (S)-carnitine(out) + Na(+)(out)
label_lc: (s)-carnitine(in) + na(+)(in) => (s)-carnitine(out) + na(+)(out)