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        "molfile": "\n  Marvin  01132109052D          \n\n  9  7  0  0  0  0            999 V2000\n    2.1385   -0.8026    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.4257   -1.2180    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7154   -2.4410    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.4257   -2.0180    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.8487   -1.2180    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    2.1385    0.0000    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -2.0180    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7154   -3.2564    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7949   -2.1564    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\n  2  1  1  0  0  0  0\n  3  4  1  0  0  0  0\n  4  2  2  0  0  0  0\n  5  1  1  0  0  0  0\n  6  1  2  0  0  0  0\n  7  3  2  0  0  0  0\n  8  3  1  0  0  0  0\nM  CHG  2   5  -1   9   1\nM  END",
        "smiles": "C(=C\\C(=O)[O-])/C(=O)O.[Na+]",
        "formula": "C4H3O4.Na",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 1,
        "molecular_weight": "138.0542",
        "optical_activity": "NONE",
        "references": [
          "d57e9780-1abe-4997-8053-32b5be0028c5",
          "aeb7beef-fcb6-424b-9e0b-a5651d67e523"
        ],
        "stereo_centers": 0
      },
      "unii": "F11949924I"
    }
  ]
}