{
  "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": "46812a9c-02a5-4eab-9de3-6a6a01da1275",
          "code": "1698-60-8",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=1698-60-8",
          "code_system": "CAS",
          "references": [
            "fc783814-04e1-44a4-9b7e-17373ded71d8",
            "84af8223-8b5c-4e13-8343-c5834e753a46"
          ]
        },
        {
          "uuid": "94d7d8e9-c5cc-4b80-afae-7b0da4d8baa2",
          "code": "C005586",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67005586",
          "code_system": "MESH",
          "references": [
            "fc783814-04e1-44a4-9b7e-17373ded71d8"
          ]
        },
        {
          "uuid": "e2119919-792f-47eb-b958-6fa90c13b3e6",
          "code": "69601",
          "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:3654",
          "code_system": "EPA PESTICIDE CODE",
          "references": [
            "fc783814-04e1-44a4-9b7e-17373ded71d8"
          ]
        },
        {
          "uuid": "f4e4cab9-e380-4847-be8a-2db0e01b0161",
          "code": "216-920-2",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.015.382",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "fc783814-04e1-44a4-9b7e-17373ded71d8"
          ]
        },
        {
          "uuid": "58e6b3c5-7eb4-42bc-9acd-4cdfa09ae8d1",
          "code": "15546",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/15546",
          "code_system": "PUBCHEM",
          "references": [
            "fc783814-04e1-44a4-9b7e-17373ded71d8"
          ]
        },
        {
          "uuid": "e2819f94-6810-2ab6-16bf-8e5e71d3a264",
          "code": "1759",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/1759",
          "code_system": "HSDB",
          "references": [
            "33545991-0402-d205-1de9-2f42a241bee3"
          ]
        },
        {
          "uuid": "2769e237-a101-4755-12b4-0e77619a4feb",
          "code": "DTXSID3034872",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID3034872",
          "code_system": "EPA CompTox",
          "references": [
            "5e508626-1a91-2559-4fa3-63b2af229a3f"
          ]
        },
        {
          "uuid": "0b4b4d6b-3a01-6c9e-c497-93df80668be9",
          "code": "1874547",
          "type": "PRIMARY",
          "url": "https://rxnav.nlm.nih.gov/REST/rxcui/1874547/allProperties.xml?prop=all",
          "code_system": "RXCUI"
        },
        {
          "uuid": "fc1b03e9-840b-f650-17b4-9d3cbb3f1124",
          "code": "m11783",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m11783",
          "code_system": "MERCK INDEX",
          "references": [
            "2ae3a085-e2c6-4a37-1617-2fbcf8526087"
          ]
        },
        {
          "uuid": "d6634b2b-0245-5cd1-8c0e-c71c9f3b554c",
          "code": "81838",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:81838",
          "code_system": "CHEBI",
          "references": [
            "2ae3a085-e2c6-4a37-1617-2fbcf8526087"
          ]
        },
        {
          "uuid": "707110c3-4882-4cb0-a04c-80e00e5b1920",
          "code": "26X5RK7X7W",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "951e0f46-0ffd-d2ae-1bd0-3a673899cdce",
          "code": "chloridazon",
          "type": "PRIMARY",
          "url": "https://pesticidecompendium.bcpc.org/chloridazon.html",
          "code_system": "ALANWOOD",
          "references": [
            "f4e3887b-1bcb-6140-8163-eb1cd5866441"
          ]
        }
      ],
      "relationships": [
        {
          "uuid": "bc1b31a1-0678-4720-8cdb-6e7420df1c2f",
          "type": "ACTIVE MOIETY",
          "related_substance": {
            "uuid": "b60d6b00-64b7-4fe8-8622-02339ae8c3dd",
            "refuuid": "90791b01-94b9-4be9-b920-87c32b0d5bca",
            "name": "CHLORIDAZON",
            "unii": "26X5RK7X7W",
            "linking_id": "26X5RK7X7W",
            "ref_pname": "CHLORIDAZON",
            "substance_class": "reference"
          }
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "fe680f3d-bdec-47c2-8263-bf829b6f2e08",
          "name": "5-AMINO-4-CHLORO-2,3-DIHYDRO-3-OXO-2-PHENYLPYRIDAZINE",
          "stdName": "5-AMINO-4-CHLORO-2,3-DIHYDRO-3-OXO-2-PHENYLPYRIDAZINE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfdb9797-f5a3-4eaa-90bd-e24ebfb4db67",
            "95934c9d-372a-491a-8464-fde208809c8d"
          ],
          "display_name": false
        },
        {
          "uuid": "273f34c5-6aaf-4f09-afd0-78ec7f2a1e23",
          "name": "BUREX",
          "stdName": "BUREX",
          "type": "bn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfdb9797-f5a3-4eaa-90bd-e24ebfb4db67",
            "95934c9d-372a-491a-8464-fde208809c8d"
          ],
          "display_name": false
        },
        {
          "uuid": "7de3376e-18cf-49fa-818a-ae20146c21ba",
          "name": "CHLORIDAZON",
          "stdName": "CHLORIDAZON",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfdb9797-f5a3-4eaa-90bd-e24ebfb4db67",
            "bb58e523-54bd-428f-a622-bef811a53c7e",
            "abfd80d5-918e-487e-9877-c0288f0c9089",
            "95934c9d-372a-491a-8464-fde208809c8d",
            "43841862-cbce-458e-82ba-2ec5318eeb68",
            "b0384cba-329e-447d-9117-c98be0d28391"
          ],
          "display_name": true
        },
        {
          "uuid": "f5c6a581-4d32-4e46-83e2-a07dec8ab677",
          "name": "CHLORIDAZON [HSDB]",
          "stdName": "CHLORIDAZON [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bb58e523-54bd-428f-a622-bef811a53c7e",
            "95934c9d-372a-491a-8464-fde208809c8d"
          ],
          "display_name": false
        },
        {
          "uuid": "81b218ee-069b-456a-a505-ad8894edc432",
          "name": "CHLORIDAZON [ISO]",
          "stdName": "CHLORIDAZON [ISO]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "abfd80d5-918e-487e-9877-c0288f0c9089",
            "95934c9d-372a-491a-8464-fde208809c8d"
          ],
          "display_name": false
        },
        {
          "uuid": "b13e4f80-43f7-aae8-d834-9a4f68ea4e64",
          "name": "CHLORIDAZON [MI]",
          "stdName": "CHLORIDAZON [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af24dac6-5487-bdf5-ac3a-e8bb9978d2df"
          ],
          "display_name": false
        },
        {
          "uuid": "1e4aee7b-cf82-4d6d-bc8a-344ce19a83eb",
          "name": "PIRAMIN",
          "stdName": "PIRAMIN",
          "type": "bn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfdb9797-f5a3-4eaa-90bd-e24ebfb4db67",
            "95934c9d-372a-491a-8464-fde208809c8d"
          ],
          "display_name": false
        },
        {
          "uuid": "c1743e54-0ea3-4376-b708-1d1df657f882",
          "name": "PYRAZON",
          "stdName": "PYRAZON",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfdb9797-f5a3-4eaa-90bd-e24ebfb4db67",
            "95934c9d-372a-491a-8464-fde208809c8d"
          ],
          "display_name": false
        },
        {
          "uuid": "a6c69485-81e4-4d01-ad60-70a029f6b1d0",
          "name": "PYRAZONE",
          "stdName": "PYRAZONE",
          "type": "bn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfdb9797-f5a3-4eaa-90bd-e24ebfb4db67",
            "95934c9d-372a-491a-8464-fde208809c8d"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "bfdb9797-f5a3-4eaa-90bd-e24ebfb4db67",
          "citation": "DOSE",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "95934c9d-372a-491a-8464-fde208809c8d",
          "citation": "DOSE",
          "doc_type": "DOSE",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "bb58e523-54bd-428f-a622-bef811a53c7e",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "abfd80d5-918e-487e-9877-c0288f0c9089",
          "citation": "ISO",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "fc783814-04e1-44a4-9b7e-17373ded71d8",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389689000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "4b6bb23a-cd07-44a4-b2b1-2acb4d356f97",
          "citation": "SRS import [26X5RK7X7W]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=26X5RK7X7W",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389689000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "43841862-cbce-458e-82ba-2ec5318eeb68",
          "citation": "CHLORIDAZON [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "b0384cba-329e-447d-9117-c98be0d28391",
          "citation": "CHLORIDAZON [ISO]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "33545991-0402-d205-1de9-2f42a241bee3",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+1698-60-8",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "5e508626-1a91-2559-4fa3-63b2af229a3f",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=1698-60-8",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "2ae3a085-e2c6-4a37-1617-2fbcf8526087",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "84af8223-8b5c-4e13-8343-c5834e753a46",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "af24dac6-5487-bdf5-ac3a-e8bb9978d2df",
          "citation": "MI",
          "doc_type": "MERCK INDEX",
          "public_domain": true
        },
        {
          "uuid": "f4e3887b-1bcb-6140-8163-eb1cd5866441",
          "citation": "AW",
          "doc_type": "ALANWOOD",
          "public_domain": true
        },
        {
          "uuid": "66f61043-5b99-0e8a-3a25-9b1c8868a5ae",
          "citation": "DailyMed",
          "doc_type": "DAILYMED",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "5be2e5be-d574-4167-9005-00362277ad5c",
          "id": "5be2e5be-d574-4167-9005-00362277ad5c",
          "molfile": "\n  Marvin  01132104452D          \n\n 15 16  0  0  0  0            999 V2000\n    2.0786   -4.6509    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7945   -5.0612    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7945   -5.8853    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5019   -6.2972    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2217   -5.8853    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9359   -6.2984    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9359   -7.1265    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.6509   -7.5342    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3671   -7.1243    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3671   -6.3067    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.6519   -5.8885    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2217   -5.0612    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9359   -4.6483    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5019   -4.6494    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5019   -3.8253    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  1  0  0  0  0\n  2  3  1  0  0  0  0\n 14  2  2  0  0  0  0\n  3  4  2  0  0  0  0\n  4  5  1  0  0  0  0\n  5  6  1  0  0  0  0\n  5 12  1  0  0  0  0\n  6  7  1  0  0  0  0\n 11  6  2  0  0  0  0\n  7  8  2  0  0  0  0\n  8  9  1  0  0  0  0\n  9 10  2  0  0  0  0\n 10 11  1  0  0  0  0\n 13 12  2  0  0  0  0\n 12 14  1  0  0  0  0\n 14 15  1  0  0  0  0\nM  END",
          "smiles": "c1ccc(cc1)-n2c(=O)c(c(cn2)N)Cl",
          "formula": "C10H8ClN3O",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "8adb9ba1-192f-4214-8f4e-e08901741fe1"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "221.6433",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "90791b01-94b9-4be9-b920-87c32b0d5bca",
      "version": "11",
      "structure": {
        "id": "9551950a-04e3-464e-8244-674a5bffe38f",
        "molfile": "\n  Marvin  01132107452D          \n\n 15 16  0  0  0  0            999 V2000\n    5.6519   -5.8885    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9359   -6.2984    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9359   -7.1265    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.6509   -7.5342    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3671   -7.1243    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3671   -6.3067    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2217   -5.8853    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2217   -5.0612    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5019   -4.6494    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7945   -5.0612    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7945   -5.8853    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5019   -6.2972    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    2.0786   -4.6509    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5019   -3.8253    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    4.9359   -4.6483    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  2  0  0  0  0\n  2  3  1  0  0  0  0\n  3  4  2  0  0  0  0\n  4  5  1  0  0  0  0\n  5  6  2  0  0  0  0\n  6  1  1  0  0  0  0\n  7  2  1  0  0  0  0\n  7  8  1  0  0  0  0\n  8  9  1  0  0  0  0\n  9 10  2  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  2  0  0  0  0\n 12  7  1  0  0  0  0\n 10 13  1  0  0  0  0\n  9 14  1  0  0  0  0\n 15  8  2  0  0  0  0\nM  END",
        "smiles": "c1ccc(cc1)-n2c(=O)c(c(cn2)N)Cl",
        "formula": "C10H8ClN3O",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "221.6433",
        "optical_activity": "NONE",
        "references": [
          "bfdb9797-f5a3-4eaa-90bd-e24ebfb4db67",
          "4b6bb23a-cd07-44a4-b2b1-2acb4d356f97"
        ],
        "stereo_centers": 0
      },
      "unii": "26X5RK7X7W"
    }
  ]
}