{
  "meta": {
    "disclaimer": "Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. We may limit or otherwise restrict your access to the API in line with our Terms of Service.",
    "terms": "https://open.fda.gov/terms/",
    "license": "https://open.fda.gov/license/",
    "last_updated": "2026-09-09",
    "results": {
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          "name": "Sacubitril (3S,5S)-Pyrrolidinone Impurity",
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          "smiles": "C[C@H]1C[C@@H](Cc2ccc(cc2)-c3ccccc3)NC1=O",
          "formula": "C18H19NO",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ABSOLUTE",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "6a2f6929-5785-416d-8133-5d063d170824"
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          "ez_centers": 0,
          "molecular_weight": "265.3502",
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      "definition_level": "COMPLETE",
      "uuid": "32ca4071-206c-4966-942d-c55ff624dfbe",
      "version": "5",
      "structure": {
        "id": "71bc0670-66c4-4ded-95d4-dc7026b18fbb",
        "molfile": "(3S,5S)-5-([1,1'-Biphenyl]-4-ylmethyl)-3-methyl-2-pyrrolidinone\n   JSDraw202172315572D\n\n 20 22  0  0  1  0              0 V2000\n   26.5353   -4.9660    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   31.9067   -6.1077    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   30.2097   -9.0469    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   22.4823   -7.3060    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   23.8332   -8.0859    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   22.4823   -5.7460    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   25.1842   -7.3060    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   23.8332   -4.9660    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   25.1842   -5.7460    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   21.1313   -8.0859    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   19.7803   -7.3060    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   21.1313   -9.6460    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   18.4293   -8.0859    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   19.7803  -10.4260    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   18.4293   -9.6460    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   27.8863   -5.7460    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   29.3113   -5.1116    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   28.0493   -7.2975    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n   30.3553   -6.2708    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   29.5753   -7.6217    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  1  9  1  0  0  0  0\n 16  1  1  6  0  0  0\n 19  2  1  6  0  0  0\n  3 20  2  0  0  0  0\n  4  5  2  0  0  0  0\n  4  6  1  0  0  0  0\n  4 10  1  0  0  0  0\n  5  7  1  0  0  0  0\n  6  8  2  0  0  0  0\n  7  9  2  0  0  0  0\n  8  9  1  0  0  0  0\n 10 11  2  0  0  0  0\n 10 12  1  0  0  0  0\n 11 13  1  0  0  0  0\n 12 14  2  0  0  0  0\n 13 15  2  0  0  0  0\n 14 15  1  0  0  0  0\n 16 17  1  0  0  0  0\n 16 18  1  0  0  0  0\n 17 19  1  0  0  0  0\n 18 20  1  0  0  0  0\n 19 20  1  0  0  0  0\nM  END",
        "smiles": "C[C@H]1C[C@@H](Cc2ccc(cc2)-c3ccccc3)NC1=O",
        "formula": "C18H19NO",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ABSOLUTE",
        "defined_stereo": 2,
        "ez_centers": 0,
        "molecular_weight": "265.3502",
        "optical_activity": "UNSPECIFIED",
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}