{
  "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": "537bc41b-15a0-499b-95ab-2eacaa43c42e",
          "code": "156-60-5",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=156-60-5",
          "code_system": "CAS",
          "references": [
            "939304cc-ec3d-4d79-9c1f-caea3862a39f",
            "b39f7c00-9024-4607-b800-734b1baa9d53"
          ]
        },
        {
          "uuid": "9f892a30-e92f-4dcd-8a47-bb94af3c04de",
          "code": "205-860-2",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.005.329",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "939304cc-ec3d-4d79-9c1f-caea3862a39f"
          ]
        },
        {
          "uuid": "d121e21f-c94d-4a70-851e-2e308a0345a5",
          "code": "m1357",
          "comments": "Merck Index",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m1357?q=authorize",
          "code_system": "MERCK INDEX",
          "references": [
            "939304cc-ec3d-4d79-9c1f-caea3862a39f"
          ]
        },
        {
          "uuid": "938d0cb1-0fef-4d92-9708-a22eceb62e62",
          "code": "638186",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/638186",
          "code_system": "PUBCHEM",
          "references": [
            "939304cc-ec3d-4d79-9c1f-caea3862a39f"
          ]
        },
        {
          "uuid": "01518e54-803f-72ee-1d9f-bc22c35d0a93",
          "code": "6361",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/6361",
          "code_system": "HSDB",
          "references": [
            "2a49c509-30af-a2e5-ec8e-dd3a4fb72801"
          ]
        },
        {
          "uuid": "0d23e882-786f-af48-a727-a2a8e4e39544",
          "code": "DTXSID7024031",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID7024031",
          "code_system": "EPA CompTox",
          "references": [
            "4d301a58-a2fc-b795-7fe0-63e321097942"
          ]
        },
        {
          "uuid": "582cea76-a718-4ac3-a57c-d3799036fedf",
          "code": "41799BI61U",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "ca1d8136-9d2b-df9f-06dc-ec90aba90fd5",
          "code": "29027",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:29027",
          "code_system": "CHEBI",
          "references": [
            "96f30be4-2d8b-e47e-81cf-22cb15e0ddf5"
          ]
        },
        {
          "uuid": "03e9a5f5-a3c4-ad13-f5a6-8e239fb01b81",
          "code": "60512",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=60512",
          "code_system": "NSC",
          "references": [
            "b6e744f9-c199-061e-ddaf-b83831370fb5"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "22a01d2d-d620-49cd-a8e6-3e234dc8bd48",
          "name": "(E)-1,2-DICHLOROETHENE",
          "stdName": "(E)-1,2-DICHLOROETHENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        },
        {
          "uuid": "000aded6-0cce-40c9-801a-5d22c28e68cb",
          "name": "(E)-1,2-DICHLOROETHYLENE",
          "stdName": "(E)-1,2-DICHLOROETHYLENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "42b6a379-2069-4e06-becf-d1a5307d25c6"
          ],
          "display_name": false
        },
        {
          "uuid": "7a22e097-35e7-4645-a5d9-ab8485700572",
          "name": "1,2-DICHLOROETHENE, TRANS-",
          "stdName": "1,2-DICHLOROETHENE, TRANS-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        },
        {
          "uuid": "f5f0c47b-fcf5-4f93-9f5d-3f5ed36d09cb",
          "name": "1,2-DICHLOROETHYLENE, (1E)-",
          "stdName": "1,2-DICHLOROETHYLENE, (1E)-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "f4d85c9b-cf5f-434a-a6ea-2c1d237bef26"
          ],
          "display_name": true
        },
        {
          "uuid": "efed6c70-3aae-4298-9c72-b4b120259735",
          "name": "1,2-DICHLOROETHYLENE, TRANS-",
          "stdName": "1,2-DICHLOROETHYLENE, TRANS-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2f1d99ad-58f9-4584-b7e9-f7a7984c0626"
          ],
          "display_name": false
        },
        {
          "uuid": "e4cdc9f0-01ca-4786-9d79-9a55572b5768",
          "name": "1,2-TRANS-DICHLOROETHYLENE",
          "stdName": "1,2-TRANS-DICHLOROETHYLENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        },
        {
          "uuid": "77f02ce5-da7e-48f5-be30-f176aaf7698d",
          "name": "ACETYLENE DICHLORIDE TRANS-FORM [MI]",
          "stdName": "ACETYLENE DICHLORIDE TRANS-FORM [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "dbde6047-da4d-4051-b010-fb98a67c2a41"
          ],
          "display_name": false
        },
        {
          "uuid": "9f8a4a6e-a475-4f45-8f8a-fb1e0d40a747",
          "name": "ETHENE, 1,2-DICHLORO-, (E)-",
          "stdName": "ETHENE, 1,2-DICHLORO-, (E)-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        },
        {
          "uuid": "eb96cb16-b77d-427d-ae14-2c1cc75fbf4a",
          "name": "ETHYLENE, 1,2-DICHLORO-, (E)-",
          "stdName": "ETHYLENE, 1,2-DICHLORO-, (E)-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        },
        {
          "uuid": "68b4a963-092a-482b-89b4-b04a75c9674b",
          "name": "HCC-1130T",
          "stdName": "HCC-1130T",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        },
        {
          "uuid": "3d2d2ed6-16ee-4566-8122-2d0180b79daf",
          "name": "NSC-60512",
          "stdName": "NSC-60512",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        },
        {
          "uuid": "5b2d826b-869a-4d7f-b6f5-a5f7343f32ea",
          "name": "R-1130T",
          "stdName": "R-1130T",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        },
        {
          "uuid": "ac4b87fd-fde8-4b95-a378-915dbf83e90a",
          "name": "TRANS-DICHLOROETHYLENE",
          "stdName": "TRANS-DICHLOROETHYLENE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "32c69960-63d7-4de9-9742-a3272a36ba7a"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "2f1d99ad-58f9-4584-b7e9-f7a7984c0626",
          "citation": "CFSAN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "f4d85c9b-cf5f-434a-a6ea-2c1d237bef26",
          "citation": "FDA_SRS",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "32c69960-63d7-4de9-9742-a3272a36ba7a",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "dbde6047-da4d-4051-b010-fb98a67c2a41",
          "citation": "MERCK",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "42b6a379-2069-4e06-becf-d1a5307d25c6",
          "citation": "TOX 21",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "939304cc-ec3d-4d79-9c1f-caea3862a39f",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391025000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "a26b7703-dc7d-4544-9240-a14b2e48c058",
          "citation": "SRS import [41799BI61U]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=41799BI61U",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391025000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "8448edae-a686-4f98-a19c-97d91d20fb45",
          "citation": "CHEMID  2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "2a49c509-30af-a2e5-ec8e-dd3a4fb72801",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+156-60-5",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "4d301a58-a2fc-b795-7fe0-63e321097942",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=156-60-5",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "96f30be4-2d8b-e47e-81cf-22cb15e0ddf5",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "b6e744f9-c199-061e-ddaf-b83831370fb5",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "b39f7c00-9024-4607-b800-734b1baa9d53",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "bc7f8b5d-c80d-46b3-9210-44cfed740814",
          "id": "bc7f8b5d-c80d-46b3-9210-44cfed740814",
          "molfile": "\n  Marvin  01132109452D          \n\n  4  3  0  0  0  0            999 V2000\n    1.7220   -0.8085    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    2.4371   -0.3970    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.1521   -0.8085    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.8671   -0.3970    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  2  3  2  0  0  0  0\n  3  4  1  0  0  0  0\nM  END",
          "smiles": "C(=C\\Cl)/Cl",
          "formula": "C2H2Cl2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "4aa3d96b-df72-4978-a412-f58f062f6f58"
          },
          "defined_stereo": 0,
          "ez_centers": 1,
          "molecular_weight": "96.9432",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "d654b755-1632-4451-8fc3-c7eb42b2b558",
      "version": "6",
      "structure": {
        "id": "575ba206-bbf5-495e-8cf6-1f24e8609dd6",
        "molfile": "\n  Marvin  01132104322D          \n\n  4  3  0  0  0  0            999 V2000\n    1.7220   -0.8085    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    2.4371   -0.3970    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.1521   -0.8085    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.8671   -0.3970    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n  2  3  2  0  0  0  0\n  1  2  1  0  0  0  0\n  3  4  1  0  0  0  0\nM  END",
        "smiles": "C(=C\\Cl)/Cl",
        "formula": "C2H2Cl2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 1,
        "molecular_weight": "96.9432",
        "optical_activity": "NONE",
        "references": [
          "8448edae-a686-4f98-a19c-97d91d20fb45",
          "a26b7703-dc7d-4544-9240-a14b2e48c058"
        ],
        "stereo_centers": 0
      },
      "unii": "41799BI61U"
    }
  ]
}