{
  "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,
      "total": 1
    }
  },
  "results": [
    {
      "codes": [
        {
          "uuid": "8f9e35a2-1c80-4b6d-b889-ce8c63a02dc0",
          "code": "82799-44-8",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=82799-44-8",
          "code_system": "CAS",
          "references": [
            "347fbe49-0194-4e47-8899-89521b336ef3",
            "6da2354b-f4fd-4ab8-bef9-a8a02c1b6eb1"
          ]
        },
        {
          "uuid": "7ff24eac-4055-4b4e-9ba2-ada527bdef62",
          "code": "280-041-0",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.072.743",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "347fbe49-0194-4e47-8899-89521b336ef3"
          ]
        },
        {
          "uuid": "34055e0e-c7bd-471e-89d8-6c404c9d1af7",
          "code": "122825",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/122825",
          "code_system": "PUBCHEM",
          "references": [
            "347fbe49-0194-4e47-8899-89521b336ef3"
          ]
        },
        {
          "uuid": "864cde7b-f1b1-bdbd-98d4-f9b6728620f8",
          "code": "DTXSID2072883",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID2072883",
          "code_system": "EPA CompTox",
          "references": [
            "df50feca-1a7a-f644-7dbc-fac517c0c5d4"
          ]
        },
        {
          "uuid": "66e48f22-6a0c-4297-866a-52550a992abd",
          "code": "U5V0PD7FHZ",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "f4cf0c61-911e-d104-bf83-822998fd8925",
          "name": "2,4-DIETHYLTHIOXANTHEN-9-ONE",
          "stdName": "2,4-DIETHYLTHIOXANTHEN-9-ONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "9bede2ce-5d9a-910b-f51d-08142ce9e96f"
          ],
          "display_name": false
        },
        {
          "uuid": "3d7c6ca8-293d-d1b1-17ef-f8fe0adf64d1",
          "name": "2,4-DIETHYLTHIOXANTHONE",
          "stdName": "2,4-DIETHYLTHIOXANTHONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "9bede2ce-5d9a-910b-f51d-08142ce9e96f"
          ],
          "display_name": true
        },
        {
          "uuid": "be4c7978-052b-4a24-9b56-f966d743fa71",
          "name": "9H-THIOXANTHEN-9-ONE, 2,4-DIETHYL-",
          "stdName": "9H-THIOXANTHEN-9-ONE, 2,4-DIETHYL-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "41aa5a23-23ad-4f7c-9b9e-0235d5c988c7",
            "3f757079-b3c1-435c-89aa-a2563b207023"
          ],
          "display_name": false
        },
        {
          "uuid": "a376ec15-2eff-01e8-b15f-7abb877e04f6",
          "name": "CHEMCURE DETX",
          "stdName": "CHEMCURE DETX",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "9bede2ce-5d9a-910b-f51d-08142ce9e96f"
          ],
          "display_name": false
        },
        {
          "uuid": "0d29965e-2246-7b9c-7cdc-a877a3ed3ea5",
          "name": "DETX",
          "stdName": "DETX",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "9bede2ce-5d9a-910b-f51d-08142ce9e96f"
          ],
          "display_name": false
        },
        {
          "uuid": "d86d39dd-7691-4d38-3f39-6384f7275379",
          "name": "DETX-S",
          "stdName": "DETX-S",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "9bede2ce-5d9a-910b-f51d-08142ce9e96f"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "41aa5a23-23ad-4f7c-9b9e-0235d5c988c7",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "3f757079-b3c1-435c-89aa-a2563b207023",
          "citation": "EPA",
          "doc_type": "EPA",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "347fbe49-0194-4e47-8899-89521b336ef3",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493394037000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "df50feca-1a7a-f644-7dbc-fac517c0c5d4",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=82799-44-8",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "9bede2ce-5d9a-910b-f51d-08142ce9e96f",
          "citation": "stn",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "6da2354b-f4fd-4ab8-bef9-a8a02c1b6eb1",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "9c876ee7-466b-4a00-8589-d4c56b203039",
          "id": "9c876ee7-466b-4a00-8589-d4c56b203039",
          "molfile": "\n  Marvin  01132108082D          \n\n 19 21  0  0  0  0            999 V2000\n   -0.4129   -2.8874    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.1274   -3.2998    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.8418   -2.8873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.8417   -2.0623    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.5561   -1.6497    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.5560   -0.8247    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.8415   -0.4123    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -3.2706   -2.0621    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -3.9851   -1.6495    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n   -4.6996   -2.0619    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -5.4140   -1.6493    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -6.1285   -2.0617    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -6.1286   -2.8867    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -5.4142   -3.2993    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -4.6997   -2.8869    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -3.9852   -3.2995    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -3.9854   -4.1245    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   -3.2707   -2.8871    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.5563   -3.2997    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  4  3  1  0  0  0  0\n  3 19  2  0  0  0  0\n  5  4  2  0  0  0  0\n  6  5  1  0  0  0  0\n  5  8  1  0  0  0  0\n  7  6  1  0  0  0  0\n  9  8  1  0  0  0  0\n  8 18  2  0  0  0  0\n  9 10  1  0  0  0  0\n 11 10  1  0  0  0  0\n 10 15  2  0  0  0  0\n 11 12  2  0  0  0  0\n 12 13  1  0  0  0  0\n 13 14  2  0  0  0  0\n 14 15  1  0  0  0  0\n 15 16  1  0  0  0  0\n 17 16  2  0  0  0  0\n 16 18  1  0  0  0  0\n 19 18  1  0  0  0  0\nM  END",
          "smiles": "CCc1cc(CC)c2c(c1)c(=O)c3ccccc3s2",
          "formula": "C17H16OS",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "28d4cec3-bb15-4c37-83e9-dd62f9cb7927"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "268.3751",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "184a2791-754b-4bc1-8145-5f7720d1007d",
      "version": "5",
      "structure": {
        "id": "accdd38c-9fd5-4e45-b786-00cbace85bba",
        "molfile": "\n  Marvin  01132108582D          \n\n 19 21  0  0  0  0            999 V2000\n   15.2626   -4.6887    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   15.2627   -3.8637    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   14.5481   -3.4511    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n   14.5480   -5.1011    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   13.8335   -4.6885    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   13.8336   -3.8635    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   15.9772   -3.4513    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   15.9770   -5.1013    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   14.5478   -5.9261    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   16.6915   -3.8639    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   16.6915   -4.6889    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   13.1190   -5.1009    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   13.1192   -3.4509    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   15.9772   -2.6263    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   17.4059   -5.1014    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   16.6918   -2.2139    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   12.4046   -4.6883    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   18.1204   -4.6890    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   12.4047   -3.8633    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  2  0  0  0  0\n  3  2  1  0  0  0  0\n  4  1  1  0  0  0  0\n  5  4  1  0  0  0  0\n  6  5  1  0  0  0  0\n  7  2  1  0  0  0  0\n  8  1  1  0  0  0  0\n  9  4  2  0  0  0  0\n 10 11  1  0  0  0  0\n 11  8  2  0  0  0  0\n 12  5  2  0  0  0  0\n 13  6  2  0  0  0  0\n 14  7  1  0  0  0  0\n 15 11  1  0  0  0  0\n 16 14  1  0  0  0  0\n 17 12  1  0  0  0  0\n 18 15  1  0  0  0  0\n 19 17  2  0  0  0  0\n  7 10  2  0  0  0  0\n  3  6  1  0  0  0  0\n 13 19  1  0  0  0  0\nM  END",
        "smiles": "CCc1cc(CC)c2c(c1)c(=O)c3ccccc3s2",
        "formula": "C17H16OS",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "268.3751",
        "optical_activity": "NONE",
        "references": [
          "41aa5a23-23ad-4f7c-9b9e-0235d5c988c7"
        ],
        "stereo_centers": 0
      },
      "unii": "U5V0PD7FHZ"
    }
  ]
}