{
  "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": "0f36e527-4817-475c-a76c-8505fdd7a72a",
          "code": "465-73-6",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=465-73-6",
          "code_system": "CAS",
          "references": [
            "c16cdd0c-e96a-4ac8-8e0b-5bd7a408168e",
            "6e74c4f9-907d-4abe-940a-7c5093881972"
          ]
        },
        {
          "uuid": "91d19f59-e9ac-4840-bb27-60eb6a688bbc",
          "code": "207-366-2",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.006.698",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "c16cdd0c-e96a-4ac8-8e0b-5bd7a408168e"
          ]
        },
        {
          "uuid": "9d323d10-3a7d-4170-88db-89e95b0efa1f",
          "code": "12310946",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/12310946",
          "code_system": "PUBCHEM",
          "references": [
            "c16cdd0c-e96a-4ac8-8e0b-5bd7a408168e"
          ]
        },
        {
          "uuid": "a6e43dbb-1b92-3c44-914c-853305137235",
          "code": "6049",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/6049",
          "code_system": "HSDB",
          "references": [
            "0288bca5-29d8-021d-e7e0-5c39e38d2dff"
          ]
        },
        {
          "uuid": "9f78fe0c-3571-74e2-5dc8-7bdfcca10078",
          "code": "DTXSID7042065",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID7042065",
          "code_system": "EPA CompTox",
          "references": [
            "0b513ceb-e2b5-2d2a-e7be-72b791988a6e"
          ]
        },
        {
          "uuid": "f6591144-19e7-4896-a38d-09f435608657",
          "code": "7P1FV3GSTB",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "782d010d-e8bc-31fd-4071-faa7c4692af1",
          "code": "8936",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=8936",
          "code_system": "NSC",
          "references": [
            "6633616b-f794-1ff4-6440-d34e3d3f6919"
          ]
        },
        {
          "uuid": "6ebc06b4-7ab0-36d5-8e7d-6901cb55afcd",
          "code": "isodrin",
          "type": "PRIMARY",
          "url": "https://pesticidecompendium.bcpc.org/isodrin.html",
          "code_system": "ALANWOOD",
          "references": [
            "17eda22d-05f9-1f8b-28ff-b77656655b70"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "4794e36c-33e9-49ec-af06-833a5b2461ae",
          "name": "1,2,3,4,10,10-HEXACHLORO-1,4,4A,5,8,8A-HEXAHYDRO-1,4-ENDO,ENDO-5,8-DIMETHANONAPHTHALENE",
          "stdName": "1,2,3,4,10,10-HEXACHLORO-1,4,4A,5,8,8A-HEXAHYDRO-1,4-ENDO,ENDO-5,8-DIMETHANONAPHTHALENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "644f57ce-4320-4cdf-b643-6af9958edebe",
            "d116d1a7-3b3b-47e9-809e-971f6cd1b7c5"
          ],
          "display_name": false
        },
        {
          "uuid": "78686adc-d544-41af-93c1-6ed5f26e2742",
          "name": "1,4:5,8-DIMETHANONAPHTHALENE, 1,2,3,4,10,10-HEXACHLORO-1,4,4A,5,8,8A-HEXAHYDRO-, (1R,4S,4AS,5R,8S,8AR)-REL-",
          "stdName": "1,4:5,8-DIMETHANONAPHTHALENE, 1,2,3,4,10,10-HEXACHLORO-1,4,4A,5,8,8A-HEXAHYDRO-, (1R,4S,4AS,5R,8S,8AR)-REL-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "644f57ce-4320-4cdf-b643-6af9958edebe",
            "d116d1a7-3b3b-47e9-809e-971f6cd1b7c5"
          ],
          "display_name": false
        },
        {
          "uuid": "94f941cc-c78e-4dbd-9f9f-398962f529c0",
          "name": "ISODRIN",
          "stdName": "ISODRIN",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "644f57ce-4320-4cdf-b643-6af9958edebe",
            "d116d1a7-3b3b-47e9-809e-971f6cd1b7c5"
          ],
          "display_name": true
        },
        {
          "uuid": "e3449dc5-d88a-46d6-a43e-82758bbc8ba7",
          "name": "NSC-8936",
          "stdName": "NSC-8936",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "22e5ad46-35b1-4058-a56e-0cdfb39279a9",
            "d116d1a7-3b3b-47e9-809e-971f6cd1b7c5"
          ],
          "display_name": false
        },
        {
          "uuid": "f5c2651d-3541-4768-848c-a82e937703a2",
          "name": "SD-3418",
          "stdName": "SD-3418",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "644f57ce-4320-4cdf-b643-6af9958edebe",
            "d116d1a7-3b3b-47e9-809e-971f6cd1b7c5"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "c16cdd0c-e96a-4ac8-8e0b-5bd7a408168e",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391947000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "0fae66f2-ae18-441d-b06d-fcefce780638",
          "citation": "SRS import [7P1FV3GSTB]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=7P1FV3GSTB",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391947000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "644f57ce-4320-4cdf-b643-6af9958edebe",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "d116d1a7-3b3b-47e9-809e-971f6cd1b7c5",
          "citation": "STN (SCIFINDER)",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "22e5ad46-35b1-4058-a56e-0cdfb39279a9",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "0288bca5-29d8-021d-e7e0-5c39e38d2dff",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+465-73-6",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "0b513ceb-e2b5-2d2a-e7be-72b791988a6e",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=465-73-6",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "17eda22d-05f9-1f8b-28ff-b77656655b70",
          "citation": "AW",
          "doc_type": "ALANWOOD",
          "public_domain": true
        },
        {
          "uuid": "6e74c4f9-907d-4abe-940a-7c5093881972",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "6633616b-f794-1ff4-6440-d34e3d3f6919",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "928c58c5-3e49-4d79-923d-a977257e7a2e",
          "id": "928c58c5-3e49-4d79-923d-a977257e7a2e",
          "molfile": "\n  Marvin  01132107362D          \n\n 18 21  0  0  0  0            999 V2000\n    7.2951   -4.9239    0.0000 C   0  0  1  0  0  0  0  0  0  2  0  0\n    7.7800   -4.2564    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.2951   -3.5890    0.0000 C   0  0  2  0  0  0  0  0  0  1  0  0\n    6.5105   -3.8440    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.5105   -4.6689    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0797   -3.8440    0.0000 C   0  0  1  0  0  0  0  0  0  2  0  0\n    8.0797   -4.6689    0.0000 C   0  0  2  0  0  0  0  0  0  1  0  0\n    8.7942   -5.0814    0.0000 C   0  0  1  0  0  0  0  0  0  1  0  0\n    8.7942   -5.9064    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    9.5086   -4.6689    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.2231   -5.0814    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    9.5086   -3.8440    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.2231   -3.4314    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    8.7942   -3.4314    0.0000 C   0  0  2  0  0  0  0  0  0  2  0  0\n    8.7942   -2.6064    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    9.2705   -4.2564    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.9025   -3.7261    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    9.9025   -4.7867    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  1  0  0  0\n  1  5  1  0  0  0  0\n  7  1  1  0  0  0  0\n  3  2  1  1  0  0  0\n  3  4  1  0  0  0  0\n  6  3  1  0  0  0  0\n  4  5  2  0  0  0  0\n  6  7  1  0  0  0  0\n  6 14  1  6  0  0  0\n  7  8  1  6  0  0  0\n  8  9  1  1  0  0  0\n  8 10  1  0  0  0  0\n  8 16  1  0  0  0  0\n 10 11  1  0  0  0  0\n 12 10  2  0  0  0  0\n 12 13  1  0  0  0  0\n 14 12  1  0  0  0  0\n 14 15  1  1  0  0  0\n 14 16  1  0  0  0  0\n 16 17  1  0  0  0  0\n 16 18  1  0  0  0  0\nM  END",
          "smiles": "C1=C[C@@H]2C[C@H]1[C@H]3[C@@H]2[C@]4(C(=C([C@@]3(C4(Cl)Cl)Cl)Cl)Cl)Cl",
          "formula": "C12H8Cl6",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ABSOLUTE",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "4be2a0b6-db90-4eac-add7-f2c9f874ba53"
          },
          "defined_stereo": 6,
          "ez_centers": 0,
          "molecular_weight": "364.91",
          "optical_activity": "UNSPECIFIED",
          "stereo_centers": 6
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "441aa361-7390-4f64-b826-e9cb7b90307d",
      "version": "6",
      "structure": {
        "id": "0168c1c9-c427-4e74-bbef-eb0a8516bd93",
        "molfile": "\n  Marvin  01132100242D          \n\n 20 23  0  0  1  0            999 V2000\n    8.7942   -2.6064    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    8.7942   -3.4314    0.0000 C   0  0  1  0  0  0  0  0  0  0  0  0\n    9.5086   -3.8440    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.2231   -3.4314    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    9.5086   -4.6689    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.2231   -5.0814    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    8.7942   -5.0814    0.0000 C   0  0  1  0  0  0  0  0  0  0  0  0\n    8.7942   -5.9064    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    9.2705   -4.2564    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.9025   -3.7261    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    9.9025   -4.7867    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    8.0797   -4.6689    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0\n    7.9935   -5.4894    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0\n    7.2951   -4.9239    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0\n    6.5105   -4.6689    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.5105   -3.8440    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.2951   -3.5890    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0\n    8.0797   -3.8440    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0\n    7.9935   -3.0234    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0\n    7.7800   -4.2564    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  1  0  0  0  0\n  3  5  2  0  0  0  0\n  5  6  1  0  0  0  0\n  7  5  1  0  0  0  0\n  7  8  1  0  0  0  0\n  2  9  1  1  0  0  0\n  7  9  1  1  0  0  0\n  9 10  1  0  0  0  0\n  9 11  1  0  0  0  0\n 12  7  1  0  0  0  0\n 12 13  1  1  0  0  0\n 12 14  1  0  0  0  0\n 14 15  1  0  0  0  0\n 16 15  2  0  0  0  0\n 17 16  1  0  0  0  0\n 18 17  1  0  0  0  0\n 18 12  1  0  0  0  0\n  2 18  1  0  0  0  0\n 18 19  1  1  0  0  0\n 17 20  1  1  0  0  0\n 14 20  1  1  0  0  0\nM  END",
        "smiles": "C1=C[C@@H]2C[C@H]1[C@@]3([H])[C@]2([H])[C@]4(C(=C([C@@]3(C4(Cl)Cl)Cl)Cl)Cl)Cl",
        "formula": "C12H8Cl6",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 6,
        "ez_centers": 0,
        "molecular_weight": "364.91",
        "optical_activity": "UNSPECIFIED",
        "references": [
          "644f57ce-4320-4cdf-b643-6af9958edebe",
          "0fae66f2-ae18-441d-b06d-fcefce780638"
        ],
        "stereo_centers": 6
      },
      "unii": "7P1FV3GSTB"
    }
  ]
}