[
  {
    "gtc_id":	"G29883XJ",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	502.15
  },
  {
    "gtc_id":	"G89292OK",
    "iupac_condensed":	null,
    "motif":	null,
    "subsumption":	"Fully-defined saccharide",
    "mass":	605.18
  }
]