{
  "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": "a4c01750-fd50-45e5-a456-644e71626ad5",
          "code": "67-72-1",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=67-72-1",
          "code_system": "CAS",
          "references": [
            "ca3ce324-ca94-41f2-b333-aa1e7030213b",
            "e4208b53-b6d5-4a57-99b1-25777c228828"
          ]
        },
        {
          "uuid": "b209d1aa-5b92-426a-a351-b55391884540",
          "code": "C010182",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67010182",
          "code_system": "MESH",
          "references": [
            "ca3ce324-ca94-41f2-b333-aa1e7030213b"
          ]
        },
        {
          "uuid": "7b834101-63a1-43df-9c52-04bb5298f9b2",
          "code": "HEXACHLOROETHANE",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/Hexachloroethane",
          "code_system": "WIKIPEDIA",
          "references": [
            "ca3ce324-ca94-41f2-b333-aa1e7030213b"
          ]
        },
        {
          "uuid": "b2190ba7-b532-463a-afb5-dd92ad522d9f",
          "code": "45201",
          "comments": "EPA PESTICIDE|CONVENTIONAL CHEMICAL",
          "type": "PRIMARY",
          "url": "http://iaspub.epa.gov/apex/pesticides/f?p=CHEMICALSEARCH:3:0::NO:21,3,31,7,12,25:P3_XCHEMICAL_ID:2513",
          "code_system": "EPA PESTICIDE CODE",
          "references": [
            "ca3ce324-ca94-41f2-b333-aa1e7030213b"
          ]
        },
        {
          "uuid": "ae3ec4dc-ac60-45ca-b2cf-8cc2e344a257",
          "code": "200-666-4",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.000.606",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "ca3ce324-ca94-41f2-b333-aa1e7030213b"
          ]
        },
        {
          "uuid": "aad7aa65-8026-4348-8620-bc2373ec0592",
          "code": "m5985",
          "comments": "Merck Index",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m5985?q=authorize",
          "code_system": "MERCK INDEX",
          "references": [
            "ca3ce324-ca94-41f2-b333-aa1e7030213b"
          ]
        },
        {
          "uuid": "07ade080-5c70-4eb9-9419-98c579ee991f",
          "code": "6214",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/6214",
          "code_system": "PUBCHEM",
          "references": [
            "ca3ce324-ca94-41f2-b333-aa1e7030213b"
          ]
        },
        {
          "uuid": "1b67c5dd-ceae-4119-880e-ea0f90eda2ef",
          "code": "C44389",
          "type": "PRIMARY",
          "url": "https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C44389",
          "code_system": "NCI_THESAURUS",
          "references": [
            "ca3ce324-ca94-41f2-b333-aa1e7030213b"
          ]
        },
        {
          "uuid": "96adcbc6-e7b8-099d-6487-ed90d95d8eda",
          "code": "2033",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/2033",
          "code_system": "HSDB",
          "references": [
            "e5cb432d-29d1-2350-0865-eab60cc23f3b"
          ]
        },
        {
          "uuid": "969ec09e-d628-a06a-5b77-8cb8f91bb28c",
          "code": "DTXSID7020689",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID7020689",
          "code_system": "EPA CompTox",
          "references": [
            "59ebddbd-de79-cccd-74d8-f3f4c1317f1e"
          ]
        },
        {
          "uuid": "e4746fe9-7527-b30a-c955-e91c8cdf7bfd",
          "code": "Hexachloroethane",
          "comments": "IARC|GROUP 2B (Possibly carcinogenic to humans)",
          "type": "PRIMARY",
          "code_system": "IARC",
          "references": [
            "4dd2e5dd-097a-aafc-10f6-eb6385d0f6c6"
          ]
        },
        {
          "uuid": "6799fb1d-5264-3062-0ed4-235134e8af0c",
          "code": "C45386",
          "comments": "Chemical Modifier[C1932]|Carcinogen[C347]|Chemical Carcinogen[C1743]|Organic Carcinogen[C45175]|Organo-halide Carcinogen[C45183]|Carcinogenic Halogenated Hydrocarbon[C45184]|Carcinogenic Chlorinated Hydrocarbon",
          "type": "CONCEPT",
          "url": "https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C45386",
          "code_system": "NCI_THESAURUS",
          "references": [
            "179e0f98-7952-09d0-d5d3-4f6c651c3439"
          ]
        },
        {
          "uuid": "b3f73a8a-f2a7-4f55-b982-ed2ed668abe0",
          "code": "G30K3QQT4J",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "841927a1-7453-fc0f-2620-33c892e28551",
          "code": "39227",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:39227",
          "code_system": "CHEBI",
          "references": [
            "179e0f98-7952-09d0-d5d3-4f6c651c3439"
          ]
        },
        {
          "uuid": "d5e870a3-addb-a407-7f2f-dcd9225aacc0",
          "code": "9224",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=9224",
          "code_system": "NSC",
          "references": [
            "016fefa3-bea4-ad04-540c-98a00f9e37f2"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "4f99373f-fc0a-45cd-95fa-3c329f2e974f",
          "name": "HEXACHLOROETHAN",
          "stdName": "HEXACHLOROETHAN",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "006981a6-5a45-4ca7-a098-e531d0319427",
            "3b9dd5ee-60df-41d0-8132-9ff2d213e8a9"
          ],
          "display_name": false
        },
        {
          "uuid": "b6b18152-31f9-4b99-b84d-2f61daf985c6",
          "name": "HEXACHLOROETHANE",
          "stdName": "HEXACHLOROETHANE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "fde4b4b1-65e3-4190-b469-f6200dabe532",
            "88490030-21a8-458d-b16c-668424ca3170",
            "cc32f447-7111-4e57-85f0-d543799cf49d",
            "3b9dd5ee-60df-41d0-8132-9ff2d213e8a9",
            "9f7727ad-1806-4e82-9cb0-f5c27acaadb0",
            "2a01d730-c464-452a-8a55-e84646a4fb84",
            "4de244d7-0769-407d-823f-be603204fabe",
            "dcae5f00-17b7-4ff3-ad29-3e3fd341e7e6"
          ],
          "display_name": true
        },
        {
          "uuid": "7547b000-05fb-4b55-b984-1da05282b0d9",
          "name": "HEXACHLOROETHANE [HSDB]",
          "stdName": "HEXACHLOROETHANE [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "88490030-21a8-458d-b16c-668424ca3170",
            "3b9dd5ee-60df-41d0-8132-9ff2d213e8a9"
          ],
          "display_name": false
        },
        {
          "uuid": "841a49e5-b6db-e5c2-e648-d87be6176c51",
          "name": "HEXACHLOROETHANE [IARC]",
          "stdName": "HEXACHLOROETHANE [IARC]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "4dd2e5dd-097a-aafc-10f6-eb6385d0f6c6"
          ],
          "display_name": false
        },
        {
          "uuid": "57f71be8-ad4f-404d-9e4b-ead1f9b6c34b",
          "name": "HEXACHLOROETHANE [MART.]",
          "stdName": "HEXACHLOROETHANE [MART.]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2a01d730-c464-452a-8a55-e84646a4fb84"
          ],
          "display_name": false
        },
        {
          "uuid": "c36a46b2-8e1e-4ccb-ace5-69e5840c828d",
          "name": "HEXACHLOROETHANE [MI]",
          "stdName": "HEXACHLOROETHANE [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "3b9dd5ee-60df-41d0-8132-9ff2d213e8a9",
            "dcae5f00-17b7-4ff3-ad29-3e3fd341e7e6"
          ],
          "display_name": false
        },
        {
          "uuid": "1bcd5308-c9eb-42bd-a1d4-75ae6a5203f9",
          "name": "NSC-9224",
          "stdName": "NSC-9224",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "f540e9f7-b641-4998-a539-fe17cb86b37d",
            "3b9dd5ee-60df-41d0-8132-9ff2d213e8a9"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "cc32f447-7111-4e57-85f0-d543799cf49d",
          "citation": "ChemIDplus 2008",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "2a01d730-c464-452a-8a55-e84646a4fb84",
          "citation": "MARTINDALE 2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "dcae5f00-17b7-4ff3-ad29-3e3fd341e7e6",
          "citation": "MERCK INDEX",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "3b9dd5ee-60df-41d0-8132-9ff2d213e8a9",
          "citation": "MERCK INDEX",
          "doc_type": "MERCK INDEX",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "88490030-21a8-458d-b16c-668424ca3170",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "006981a6-5a45-4ca7-a098-e531d0319427",
          "citation": "who-dd",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f540e9f7-b641-4998-a539-fe17cb86b37d",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ca3ce324-ca94-41f2-b333-aa1e7030213b",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389693000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "b6981e99-949a-43f5-87de-60c06f68deee",
          "citation": "SRS import [G30K3QQT4J]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=G30K3QQT4J",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389693000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "4de244d7-0769-407d-823f-be603204fabe",
          "citation": "HEXACHLOROETHANE [MART.]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "fde4b4b1-65e3-4190-b469-f6200dabe532",
          "citation": "HEXACHLOROETHANE [MI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "9f7727ad-1806-4e82-9cb0-f5c27acaadb0",
          "citation": "HEXACHLOROETHANE [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "e5cb432d-29d1-2350-0865-eab60cc23f3b",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+67-72-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "59ebddbd-de79-cccd-74d8-f3f4c1317f1e",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=67-72-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "4dd2e5dd-097a-aafc-10f6-eb6385d0f6c6",
          "citation": "IARC",
          "doc_type": "IARC",
          "public_domain": true
        },
        {
          "uuid": "179e0f98-7952-09d0-d5d3-4f6c651c3439",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "e4208b53-b6d5-4a57-99b1-25777c228828",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "016fefa3-bea4-ad04-540c-98a00f9e37f2",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "c484eeb9-8e54-49a8-bf34-10e2574d3b38",
          "id": "c484eeb9-8e54-49a8-bf34-10e2574d3b38",
          "molfile": "\n  Marvin  01132110102D          \n\n  8  7  0  0  0  0            999 V2000\n    0.0000   -0.9515    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    0.7994   -0.8148    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.8612   -1.6348    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    0.5905   -0.0206    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    1.6271   -0.8148    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8437   -1.6271    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    2.4393   -0.6988    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    1.5703    0.0000    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  3  2  1  0  0  0  0\n  4  2  1  0  0  0  0\n  5  2  1  0  0  0  0\n  6  5  1  0  0  0  0\n  7  5  1  0  0  0  0\n  8  5  1  0  0  0  0\nM  END",
          "smiles": "C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl",
          "formula": "C2Cl6",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "a3507cba-6d6c-4298-a6bc-42254b25da0b"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "236.7391",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "5add2d6f-d550-4e68-bd90-ef2a9d81ee60",
      "version": "10",
      "structure": {
        "id": "2e350ae8-25d5-497f-9db5-f99419f94139",
        "molfile": "\n  Marvin  01132102292D          \n\n  8  7  0  0  0  0            999 V2000\n    0.7994   -0.8148    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.6271   -0.8148    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -0.9515    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    0.8612   -1.6348    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    0.5905   -0.0206    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    1.8437   -1.6271    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    2.4393   -0.6988    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    1.5703    0.0000    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  1  0  0  0  0\n  3  1  1  0  0  0  0\n  4  1  1  0  0  0  0\n  5  1  1  0  0  0  0\n  6  2  1  0  0  0  0\n  7  2  1  0  0  0  0\n  8  2  1  0  0  0  0\nM  END",
        "smiles": "C(C(Cl)(Cl)Cl)(Cl)(Cl)Cl",
        "formula": "C2Cl6",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "236.7391",
        "optical_activity": "NONE",
        "references": [
          "cc32f447-7111-4e57-85f0-d543799cf49d",
          "b6981e99-949a-43f5-87de-60c06f68deee"
        ],
        "stereo_centers": 0
      },
      "unii": "G30K3QQT4J"
    }
  ]
}