preferred_name: O-butanoyl-(R)-carnitine(in) => O-butanoyl-(R)-carnitine(out)
preferred_name_lc: o-butanoyl-(r)-carnitine(in) => o-butanoyl-(r)-carnitine(out)
label: O-butanoyl-(R)-carnitine(in) => O-butanoyl-(R)-carnitine(out)
label_lc: o-butanoyl-(r)-carnitine(in) => o-butanoyl-(r)-carnitine(out)