[
  {
    "gtc_id":	"G43332BR",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	484.22
  },
  {
    "gtc_id":	"G76710ZN",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	646.27
  }
]