{
  "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": "02185d0d-7322-487f-b4a1-f11141fdf7c3",
          "code": "541-73-1",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=541-73-1",
          "code_system": "CAS",
          "references": [
            "c4e0b798-50f0-47b1-8afd-782adb04978d",
            "e33194f5-ea40-4ad6-ac7e-a74c90b34151"
          ]
        },
        {
          "uuid": "331934d1-d317-4d9c-aaf9-929b257549b7",
          "code": "C042146",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67042146",
          "code_system": "MESH",
          "references": [
            "c4e0b798-50f0-47b1-8afd-782adb04978d"
          ]
        },
        {
          "uuid": "c7d5a4f8-2004-4f06-93fd-cfd561243073",
          "code": "m4334",
          "comments": "Merck Index",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m4334?q=authorize",
          "code_system": "MERCK INDEX",
          "references": [
            "c4e0b798-50f0-47b1-8afd-782adb04978d"
          ]
        },
        {
          "uuid": "bf0ba5b6-a52f-42a5-85bc-1730a5854e1b",
          "code": "10943",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/10943",
          "code_system": "PUBCHEM",
          "references": [
            "c4e0b798-50f0-47b1-8afd-782adb04978d"
          ]
        },
        {
          "uuid": "5c918d6b-d0c6-468e-a977-f9bb820ccc09",
          "code": "208-792-1",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.007.994",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "c4e0b798-50f0-47b1-8afd-782adb04978d"
          ]
        },
        {
          "uuid": "2f374d4b-659f-1ec3-8c2e-e105deca1f57",
          "code": "1,3-Dichlorobenzene",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/1,3-Dichlorobenzene",
          "code_system": "WIKIPEDIA",
          "references": [
            "f4849668-a46e-8d48-64a7-5283f6854f5b"
          ]
        },
        {
          "uuid": "38da4fd8-631d-a7dc-4856-c354a4cc1666",
          "code": "522",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/522",
          "code_system": "HSDB",
          "references": [
            "590d1c37-f755-98d3-6104-91d9c40fa089"
          ]
        },
        {
          "uuid": "176d9466-7dd5-9243-6a8f-5e8e252bb23f",
          "code": "DTXSID6022056",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID6022056",
          "code_system": "EPA CompTox",
          "references": [
            "c44bd02b-99a2-b29c-dc2f-7901dc942929"
          ]
        },
        {
          "uuid": "be651b80-5278-92d1-73d1-c8564887228e",
          "code": "36693",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:36693",
          "code_system": "CHEBI",
          "references": [
            "7c6319bc-96d2-2f77-d753-a9ab0713e5ed"
          ]
        },
        {
          "uuid": "a18ee663-3bea-4f50-9feb-de3fe8d0ebe5",
          "code": "75W0WNE5FP",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "50597858-f6d1-95c0-54f9-0a6a7cedcf6b",
          "code": "8754",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=8754",
          "code_system": "NSC",
          "references": [
            "ed55efe3-1e83-c946-7b65-62f898b0474a"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "47eef0fa-19c9-4be7-9915-50a90f59c3c8",
          "name": "1,3-DICHLOROBENZENE",
          "stdName": "1,3-DICHLOROBENZENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "9eea0ef0-38a2-4d35-8da0-fb3af641993e",
            "da914528-8b1e-4b05-ab20-ff9465b6b721",
            "55630164-ed31-4912-80ec-d0d3051a5d47"
          ],
          "display_name": false
        },
        {
          "uuid": "847b884b-751f-4791-b8c3-afbb87ff6387",
          "name": "1,3-DICHLOROBENZENE [HSDB]",
          "stdName": "1,3-DICHLOROBENZENE [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "9eea0ef0-38a2-4d35-8da0-fb3af641993e"
          ],
          "display_name": false
        },
        {
          "uuid": "884be1e7-efa7-70e5-c726-530c43b87d9f",
          "name": "BENZENE, 1,3-DICHLORO-",
          "stdName": "BENZENE, 1,3-DICHLORO-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0f6736e6-19d8-407f-ddf7-7fc555be62d8"
          ],
          "display_name": false
        },
        {
          "uuid": "c6ec0df1-4347-4061-9f7a-f6ebf453a7fd",
          "name": "DICHLOROBENZENE, M-",
          "stdName": "DICHLOROBENZENE, M-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "e9358c57-48ab-4b22-9527-b1ff16646d96"
          ],
          "display_name": false
        },
        {
          "uuid": "40e4493d-f03b-44f7-b53b-903c8f56bde0",
          "name": "M-DICHLOROBENZENE [MI]",
          "stdName": "M-DICHLOROBENZENE [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "433fac84-0f23-4f52-903b-ad6c65367805"
          ],
          "display_name": false
        },
        {
          "uuid": "06171b07-2f2f-3075-89b2-77a796a2866b",
          "name": "META-DICHLOROBENZENE",
          "stdName": "META-DICHLOROBENZENE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "dad8a718-619c-c064-8d68-5fbeb762e4d9"
          ],
          "display_name": false
        },
        {
          "uuid": "849ac763-7940-519b-546c-be37ba32b78a",
          "name": "META-DICHLOROBENZENE [IARC]",
          "stdName": "META-DICHLOROBENZENE [IARC]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "dad8a718-619c-c064-8d68-5fbeb762e4d9"
          ],
          "display_name": false
        },
        {
          "uuid": "6135888c-a623-4d61-9d01-ad81be249c52",
          "name": "METADICHLOROBENZENE",
          "stdName": "METADICHLOROBENZENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "da914528-8b1e-4b05-ab20-ff9465b6b721"
          ],
          "display_name": false
        },
        {
          "uuid": "f89cfb0d-da55-49dc-8d56-5751ca52e352",
          "name": "NSC-8754",
          "stdName": "NSC-8754",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "949ce090-a23c-42ce-b06a-3fc8dfedbe99"
          ],
          "display_name": false
        },
        {
          "uuid": "2cdd4ac2-a476-4909-92de-a1427f210517",
          "name": "m-Dichlorobenzene",
          "stdName": "M-DICHLOROBENZENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "ac10668e-f6f9-4ee6-ba37-92593685683b",
            "e9f2ebf6-f9cc-4116-84b1-a1e41d796bd0",
            "433fac84-0f23-4f52-903b-ad6c65367805"
          ],
          "display_name": true
        }
      ],
      "references": [
        {
          "uuid": "e9358c57-48ab-4b22-9527-b1ff16646d96",
          "citation": "HAWLEYS",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "e9f2ebf6-f9cc-4116-84b1-a1e41d796bd0",
          "citation": "WIKIPEDIA",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "da914528-8b1e-4b05-ab20-ff9465b6b721",
          "citation": "FDA_SRS",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "433fac84-0f23-4f52-903b-ad6c65367805",
          "citation": "MERCK INDEX",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "9eea0ef0-38a2-4d35-8da0-fb3af641993e",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "949ce090-a23c-42ce-b06a-3fc8dfedbe99",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "c4e0b798-50f0-47b1-8afd-782adb04978d",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389667000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ef05a198-8b18-489e-8ff9-dac5cdb41905",
          "citation": "SRS import [75W0WNE5FP]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=75W0WNE5FP",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389667000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ac10668e-f6f9-4ee6-ba37-92593685683b",
          "citation": "M-DICHLOROBENZENE [MI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "55630164-ed31-4912-80ec-d0d3051a5d47",
          "citation": "1,3-DICHLOROBENZENE [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "590d1c37-f755-98d3-6104-91d9c40fa089",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+541-73-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "f4849668-a46e-8d48-64a7-5283f6854f5b",
          "citation": "WIKI",
          "url": "https://en.wikipedia.org/wiki/1,3-Dichlorobenzene",
          "doc_type": "WIKI",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "c44bd02b-99a2-b29c-dc2f-7901dc942929",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=541-73-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "0f6736e6-19d8-407f-ddf7-7fc555be62d8",
          "citation": "tkb",
          "doc_type": "TOBACCO KNOWLEDGE BASE",
          "public_domain": true
        },
        {
          "uuid": "dad8a718-619c-c064-8d68-5fbeb762e4d9",
          "citation": "IARC",
          "doc_type": "IARC",
          "public_domain": true
        },
        {
          "uuid": "e33194f5-ea40-4ad6-ac7e-a74c90b34151",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "7c6319bc-96d2-2f77-d753-a9ab0713e5ed",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "ed55efe3-1e83-c946-7b65-62f898b0474a",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "6bc1e61d-ec40-408e-8fbd-0345a3421ddf",
          "id": "6bc1e61d-ec40-408e-8fbd-0345a3421ddf",
          "molfile": "\n  Marvin  01132105362D          \n\n  8  8  0  0  0  0            999 V2000\n    2.8151   -1.6531    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    2.1210   -1.2366    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1210   -0.4165    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.4063    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.6941   -0.4165    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.6941   -1.2366    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -1.6531    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    1.4063   -1.6531    0.0000 C   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  2  8  2  0  0  0  0\n  4  3  2  0  0  0  0\n  4  5  1  0  0  0  0\n  5  6  2  0  0  0  0\n  7  6  1  0  0  0  0\n  6  8  1  0  0  0  0\nM  END",
          "smiles": "c1cc(cc(c1)Cl)Cl",
          "formula": "C6H4Cl2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "f3e85da9-61e7-4c1d-ba44-5bd3c428d2ec"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "147.0021",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "807853eb-3289-43cb-8c19-6b58bc5abdd2",
      "version": "12",
      "structure": {
        "id": "a7fc997f-3d7b-48ea-b945-38b19c852bec",
        "molfile": "\n  Marvin  01132108432D          \n\n  8  8  0  0  0  0            999 V2000\n    1.4063   -1.6531    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.6941   -1.2366    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1210   -1.2366    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.8151   -1.6531    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -1.6531    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    1.4063    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1210   -0.4165    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.6941   -0.4165    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  1  1  0  0  0  0\n  4  3  1  0  0  0  0\n  5  2  1  0  0  0  0\n  6  7  1  0  0  0  0\n  7  3  2  0  0  0  0\n  8  2  1  0  0  0  0\n  6  8  2  0  0  0  0\nM  END",
        "smiles": "c1cc(cc(c1)Cl)Cl",
        "formula": "C6H4Cl2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "147.0021",
        "optical_activity": "NONE",
        "references": [
          "e9358c57-48ab-4b22-9527-b1ff16646d96",
          "ef05a198-8b18-489e-8ff9-dac5cdb41905"
        ],
        "stereo_centers": 0
      },
      "unii": "75W0WNE5FP"
    }
  ]
}