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          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "137.3269",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "37ec2c86-e837-4f6f-98cc-bd21a61c4fd6",
      "version": "22",
      "structure": {
        "id": "dda6fd13-0172-4652-a131-13bb7f28d559",
        "molfile": "\n  Marvin  01132111292D          \n\n  1  0  0  0  0  0            999 V2000\n    2.7500   -1.8438    0.0000 Ba  0  0  0  0  0 15  0  0  0  0  0  0\nM  END",
        "smiles": "[Ba]",
        "formula": "Ba",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "137.3269",
        "optical_activity": "NONE",
        "references": [
          "f0c8717f-faa7-47ff-afd3-5d152e36c85a",
          "f686b350-c02a-4182-8988-38c6cb1e70c4"
        ],
        "stereo_centers": 0
      },
      "unii": "24GP945V5T"
    }
  ]
}