{
  "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": "2025-09-19",
    "results": {
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          "code_system": "CAS",
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            "ref_pname": "N-ACETYLMETHIONINE",
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          "smiles": "[Au+2]",
          "formula": "Au",
          "atropisomerism": "No",
          "charge": 2,
          "count": 1,
          "stereochemistry": "ACHIRAL",
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          "molfile": "\n  Marvin  01132104372D          \n\n 12 11  0  0  1  0            999 V2000\n    8.9081   -4.9114    0.0000 C   0  0  2  0  0  0  0  0  0  2  0  0\n    9.7331   -4.9114    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.1457   -4.1969    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.9707   -4.1969    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n   11.3831   -3.4824    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4956   -5.6258    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    8.9081   -6.3403    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4956   -7.0547    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.7331   -6.3403    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4956   -4.1969    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.9081   -3.4824    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    7.6706   -4.1969    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  1  6  1  6  0  0  0\n  1 10  1  0  0  0  0\n  2  3  1  0  0  0  0\n  3  4  1  0  0  0  0\n  4  5  1  0  0  0  0\n  7  6  1  0  0  0  0\n  7  8  1  0  0  0  0\n  7  9  2  0  0  0  0\n 10 11  1  0  0  0  0\n 10 12  2  0  0  0  0\nM  CHG  1  11  -1\nM  END",
          "smiles": "CC(=O)N[C@@H](CCSC)C(=O)[O-]",
          "formula": "C7H12NO3S",
          "atropisomerism": "No",
          "charge": -1,
          "count": 2,
          "stereochemistry": "ABSOLUTE",
          "count_amount": {
            "type": "MOL RATIO",
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            "units": "MOL RATIO",
            "uuid": "2060c310-1792-4baa-9f21-eb85da14fd37"
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          "molecular_weight": "190.2414",
          "optical_activity": "UNSPECIFIED",
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      "definition_level": "COMPLETE",
      "uuid": "dace18cf-e823-4e18-8aee-e341739daca7",
      "version": "4",
      "structure": {
        "id": "47cdc6ed-57e3-40e1-b884-a424c4628ebf",
        "molfile": "\n  Marvin  01132103462D          \n\n 25 22  0  0  1  0            999 V2000\n    6.3302   -4.8677    0.0000 Au  0  2  0  0  0  0  0  0  0  0  0  0\n    8.9081   -6.3403    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4956   -7.0547    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.7331   -6.3403    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4956   -5.6258    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    8.9081   -4.9114    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0\n    8.4956   -4.1969    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.9081   -3.4824    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.6706   -4.1969    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    9.7331   -4.9114    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.1457   -4.1969    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.9707   -4.1969    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n   11.3831   -3.4824    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.9081   -6.3403    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4956   -7.0547    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.7331   -6.3403    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4956   -5.6258    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    8.9081   -4.9114    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0\n    8.4956   -4.1969    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.9081   -3.4824    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.6706   -4.1969    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    9.7331   -4.9114    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.1457   -4.1969    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.9707   -4.1969    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n   11.3831   -3.4824    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  2  3  1  0  0  0  0\n  2  4  2  0  0  0  0\n  2  5  1  0  0  0  0\n  6  5  1  6  0  0  0\n  6  7  1  0  0  0  0\n  7  8  2  0  0  0  0\n  7  9  1  0  0  0  0\n  6 10  1  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  1  0  0  0  0\n 12 13  1  0  0  0  0\n 14 15  1  0  0  0  0\n 14 16  2  0  0  0  0\n 14 17  1  0  0  0  0\n 18 17  1  6  0  0  0\n 18 19  1  0  0  0  0\n 18 22  1  0  0  0  0\n 19 20  2  0  0  0  0\n 19 21  1  0  0  0  0\n 22 23  1  0  0  0  0\n 23 24  1  0  0  0  0\n 24 25  1  0  0  0  0\nM  CHG  3   1   2   9  -1  21  -1\nM  STY  1   1 MUL\nM  SCN  1   1 HT \nM  SAL   1 15   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16\nM  SAL   1  9  17  18  19  20  21  22  23  24  25\nM  SPA   1 12   2   3   4   5   6   7   8   9  10  11  12  13\nM  SDI   1  4    7.2506   -7.4747    7.2506   -3.0624\nM  SDI   1  4   11.8031   -3.0624   11.8031   -7.4747\nM  SMT   1 2\nM  END",
        "smiles": "CC(=O)N[C@@H](CCSC)C(=O)[O-].CC(=O)N[C@@H](CCSC)C(=O)[O-].[Au+2]",
        "formula": "2C7H12NO3S.Au",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ABSOLUTE",
        "defined_stereo": 2,
        "ez_centers": 0,
        "molecular_weight": "577.4495",
        "optical_activity": "UNSPECIFIED",
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        "stereo_centers": 2
      },
      "unii": "RDA9X022TH"
    }
  ]
}