{
  "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": {
      "skip": 0,
      "limit": 1,
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          "code": "2323070-48-8",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=2323070-48-8",
          "code_system": "CAS",
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          "code": "6325610",
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            "5b3f4f22-e80d-3271-6ea4-a7646d5cbf86"
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          "name": "2,7-Dihydro-3,8-dimethylanthra[1,9-bc:5,10-b'c′]dipyrrole-4,5,9,10-tetrone",
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          "stdName": "ANTHRA(1,9-BC:5,10-B'C')DIPYRROLE-4,5,9,10-TETRONE, 2,7-DIHYDRO-3,8-DIMETHYL-",
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          "citation": "STN",
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          "tags": [
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        {
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          "citation": "PUBCHEM",
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        {
          "uuid": "6f228031-d741-4c6e-24f5-475015a232d1",
          "citation": "EPA CompTox",
          "doc_type": "EPA",
          "public_domain": true
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      "definition_type": "PRIMARY",
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          "smiles": "Cc1c2c3c(c[nH]2)c4c5c(c[nH]c5c(C)c(=O)c4=O)c3c(=O)c1=O",
          "formula": "C18H10N2O4",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "abb1ee5b-1958-49e4-aac8-6db5f58030c0"
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          "molecular_weight": "318.2837",
          "optical_activity": "NONE",
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      "definition_level": "COMPLETE",
      "uuid": "cb548a1e-3d92-4cb5-95ae-54a7bc220d66",
      "version": "7",
      "structure": {
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        "molfile": "ZINC000012496246\n  Marvin  01132104002D          \n\n 24 28  0  0  0  0            999 V2000\n   -1.2822   -1.6500    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.2822   -0.8250    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.9967   -0.4125    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.7112   -0.8250    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.9967    0.4125    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.7112    0.8250    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.2822    0.8250    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.1960    1.6455    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.7480    2.2586    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.3355    2.9730    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.5286    2.8015    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.2251    3.1461    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.2251    3.9711    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.9396    2.7336    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.6541    3.1461    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.9396    1.9086    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.6541    1.4961    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.2251    1.4961    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.2169    0.6674    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7018    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.2169   -0.6674    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.5678   -0.4125    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.5678    0.4125    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.4423    1.9810    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  2  3  1  0  0  0  0\n  3  4  2  0  0  0  0\n  3  5  1  0  0  0  0\n  5  6  2  0  0  0  0\n  5  7  1  0  0  0  0\n  7  8  1  0  0  0  0\n  8  9  2  0  0  0  0\n  9 10  1  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  2  0  0  0  0\n 12 13  1  0  0  0  0\n 12 14  1  0  0  0  0\n 14 15  2  0  0  0  0\n 14 16  1  0  0  0  0\n 16 17  2  0  0  0  0\n 16 18  1  0  0  0  0\n 18 19  1  0  0  0  0\n 19 20  2  0  0  0  0\n 20 21  1  0  0  0  0\n 21 22  1  0  0  0  0\n 22 23  1  0  0  0  0\n 18 24  2  0  0  0  0\n 22  2  2  0  0  0  0\n 23  7  2  0  0  0  0\n 24  8  1  0  0  0  0\n 24 11  1  0  0  0  0\n 23 19  1  0  0  0  0\nM  END",
        "smiles": "Cc1c2c3c(c[nH]2)c4c5c(c[nH]c5c(C)c(=O)c4=O)c3c(=O)c1=O",
        "formula": "C18H10N2O4",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "318.2837",
        "optical_activity": "NONE",
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      "unii": "T6T74PN7VH"
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}