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          "public_domain": true,
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          "public_domain": true
        },
        {
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          "citation": "DailyMed",
          "doc_type": "DAILYMED",
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          "doc_type": "USPNF",
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      "moieties": [
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          "molfile": "\n  Marvin  01132104212D          \n\n  1  0  0  0  0  0            999 V2000\n    6.8476   -1.0522    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\nM  CHG  1   1   1\nM  END",
          "smiles": "[Na+]",
          "formula": "Na",
          "atropisomerism": "No",
          "charge": 1,
          "count": 2,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
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            "units": "MOL RATIO",
            "uuid": "318f96df-f081-4105-8441-b20ef61c7439"
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          "molfile": "\n  Marvin  01132110462D          \n\n  8  7  0  0  0  0            999 V2000\n    1.6243   -0.6513    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    2.3382   -1.0564    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.3382   -1.8831    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    3.0522   -0.6430    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.7662   -1.0564    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4802   -0.6430    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1941   -1.0522    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    4.4802    0.1837    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  3  2  2  0  0  0  0\n  4  2  1  0  0  0  0\n  5  4  1  0  0  0  0\n  6  5  1  0  0  0  0\n  7  6  1  0  0  0  0\n  8  6  2  0  0  0  0\nM  CHG  2   1  -1   7  -1\nM  END",
          "smiles": "C(CC(=O)[O-])C(=O)[O-]",
          "formula": "C4H4O4",
          "atropisomerism": "No",
          "charge": -2,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
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            "units": "MOL RATIO",
            "uuid": "bc0042e1-7825-44b7-80b9-e4b81c8d5342"
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          "ez_centers": 0,
          "molecular_weight": "116.0723",
          "optical_activity": "NONE",
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      "definition_level": "COMPLETE",
      "uuid": "a8740c3d-c1b7-4839-838c-fe9d94175394",
      "version": "21",
      "structure": {
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        "molfile": "\n  Marvin  01132104222D          \n\n 10  7  0  0  0  0            999 V2000\n    2.3382   -1.0564    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4802   -0.6430    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.6243   -0.6513    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    5.1941   -1.0522    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    4.4802    0.1837    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    2.3382   -1.8831    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    3.0522   -0.6430    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.7662   -1.0564    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.8476   -1.0522    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\n    6.8476   -1.0522    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\n  5  2  2  0  0  0  0\n  6  1  2  0  0  0  0\n  7  1  1  0  0  0  0\n  8  7  1  0  0  0  0\n  2  8  1  0  0  0  0\n  3  1  1  0  0  0  0\n  4  2  1  0  0  0  0\nM  CHG  4   3  -1   4  -1   9   1  10   1\nM  STY  1   1 MUL\nM  SCN  1   1 HT \nM  SAL   1  2   9  10\nM  SPA   1  1   9\nM  SDI   1  4    6.4276   -1.4722    6.4276   -0.6322\nM  SDI   1  4    7.2676   -0.6322    7.2676   -1.4722\nM  SMT   1 2\nM  END",
        "smiles": "C(CC(=O)[O-])C(=O)[O-].[Na+].[Na+]",
        "formula": "C4H4O4.2Na",
        "atropisomerism": "No",
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        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "162.0519",
        "optical_activity": "NONE",
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}