{
  "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": "2026-09-09",
    "results": {
      "skip": 0,
      "limit": 1,
      "total": 1
    }
  },
  "results": [
    {
      "codes": [
        {
          "uuid": "5faa77a7-159b-4480-8e90-97a3c13c3164",
          "code": "128-09-6",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=128-09-6",
          "code_system": "CAS",
          "references": [
            "356c8c31-3c5b-4731-83df-48103318923f",
            "817d43b5-5233-4dcb-9526-01c217d5fbb4"
          ]
        },
        {
          "uuid": "c827127c-6900-45e0-82b6-21de5ef33eca",
          "code": "C015752",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67015752",
          "code_system": "MESH",
          "references": [
            "356c8c31-3c5b-4731-83df-48103318923f"
          ]
        },
        {
          "uuid": "85299f81-3caf-4849-bf7c-262d2f91d33b",
          "code": "N-CHLOROSUCCINIMIDE",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/N-Chlorosuccinimide",
          "code_system": "WIKIPEDIA",
          "references": [
            "356c8c31-3c5b-4731-83df-48103318923f"
          ]
        },
        {
          "uuid": "a516a320-5184-4b55-840b-e87eb94e82a7",
          "code": "77301",
          "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:463",
          "code_system": "EPA PESTICIDE CODE",
          "references": [
            "356c8c31-3c5b-4731-83df-48103318923f"
          ]
        },
        {
          "uuid": "ec3eca66-ab6e-42b6-ad16-c31e76e2fce5",
          "code": "204-878-8",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.004.436",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "356c8c31-3c5b-4731-83df-48103318923f"
          ]
        },
        {
          "uuid": "9090a9ad-d59d-40c0-b623-c8ccd6910941",
          "code": "m3437",
          "comments": "Merck Index",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m3437?q=authorize",
          "code_system": "MERCK INDEX",
          "references": [
            "356c8c31-3c5b-4731-83df-48103318923f"
          ]
        },
        {
          "uuid": "06ba463f-aec7-44cf-9244-46e12cb768f3",
          "code": "CHEMBL2107513",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chembl/compound/inspect/CHEMBL2107513",
          "code_system": "ChEMBL",
          "references": [
            "356c8c31-3c5b-4731-83df-48103318923f"
          ]
        },
        {
          "uuid": "46aaf58d-334b-4e6f-b064-12e1dec635f2",
          "code": "31398",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/31398",
          "code_system": "PUBCHEM",
          "references": [
            "356c8c31-3c5b-4731-83df-48103318923f"
          ]
        },
        {
          "uuid": "b4efa083-ffa5-c188-15e9-be19ae8f831f",
          "code": "5407",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/5407",
          "code_system": "HSDB",
          "references": [
            "0b6afbd3-1661-2285-7d9f-61de6ead7d7f"
          ]
        },
        {
          "uuid": "3b414935-dfb6-6b1f-9dfa-6dd17b7053c0",
          "code": "DTXSID2042199",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID2042199",
          "code_system": "EPA CompTox",
          "references": [
            "857d2ae8-8041-e270-4b74-2e99f0b5b213"
          ]
        },
        {
          "uuid": "b619f4a1-0401-4112-a781-4bba44e637d2",
          "code": "0FWP306H7X",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "61f99c68-49cf-121d-500e-cf89e99b4ca9",
          "code": "53203",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:53203",
          "code_system": "CHEBI",
          "references": [
            "5e7d9192-4088-6638-8a72-78c6b2aff1ba"
          ]
        },
        {
          "uuid": "eed1c632-3baa-3a85-73e3-6611827a6842",
          "code": "8748",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=8748",
          "code_system": "NSC",
          "references": [
            "1b42eeb0-69a6-3d75-8ff4-0f9ef6b84770"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "61ddedc8-c206-4d47-99aa-97640b2d0b52",
          "name": "1-Chloro-2,5-pyrrolidinedione",
          "stdName": "1-CHLORO-2,5-PYRROLIDINEDIONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "28b98dc1-f265-437a-a86d-178513806e22",
            "7363fb6a-c030-45b7-9270-2c7aa579d70e"
          ],
          "display_name": false
        },
        {
          "uuid": "d154f5b2-9741-48fa-a0cf-134142523fa4",
          "name": "Chlorosuccinimide",
          "stdName": "CHLOROSUCCINIMIDE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "99c5d868-7619-454c-aec3-3a1bdbb55610",
            "7363fb6a-c030-45b7-9270-2c7aa579d70e"
          ],
          "display_name": false
        },
        {
          "uuid": "f1922d23-06b4-4779-b999-92378e5589b6",
          "name": "N-Chlorosuccinimide",
          "stdName": "N-CHLOROSUCCINIMIDE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a7829d21-8c43-44b9-9587-dcdbedf959da",
            "f9bc75a9-5b91-4166-a34e-fbf3622dbc2b",
            "9389f666-083e-4d60-93b8-43e0cb2517bd",
            "7363fb6a-c030-45b7-9270-2c7aa579d70e"
          ],
          "display_name": true
        },
        {
          "uuid": "f6698648-473e-4e55-b0a4-ffd5dd519774",
          "name": "N-Chlorosuccinimide [MI]",
          "stdName": "N-CHLOROSUCCINIMIDE [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "f9bc75a9-5b91-4166-a34e-fbf3622dbc2b",
            "7363fb6a-c030-45b7-9270-2c7aa579d70e"
          ],
          "display_name": false
        },
        {
          "uuid": "8900517a-b07b-4c67-a6fe-d4d659d7bb58",
          "name": "NCS",
          "stdName": "NCS",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "28b98dc1-f265-437a-a86d-178513806e22",
            "7363fb6a-c030-45b7-9270-2c7aa579d70e"
          ],
          "display_name": false
        },
        {
          "uuid": "13e30a1e-d3ac-44e0-b247-e07a1d0ec27c",
          "name": "NSC-8748",
          "stdName": "NSC-8748",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "e52cc4a5-c757-4d64-8c45-3adf87c43bf0",
            "7363fb6a-c030-45b7-9270-2c7aa579d70e"
          ],
          "display_name": false
        },
        {
          "uuid": "68b081e6-3cef-441a-a972-d1d41a45955e",
          "name": "Succinchlorimide",
          "stdName": "SUCCINCHLORIMIDE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7179416b-fb20-46a7-ad54-c974c53c05ad",
            "af12de0a-35a1-412a-a281-ab70cc26d4f6",
            "9389f666-083e-4d60-93b8-43e0cb2517bd",
            "8c5596f9-9c48-49e1-8857-8d551e9151fd",
            "0601718f-29c0-4ad8-8e51-3df09e367a17",
            "7363fb6a-c030-45b7-9270-2c7aa579d70e"
          ],
          "display_name": false
        },
        {
          "uuid": "94670d69-52f4-4d56-b33c-f98a97219c84",
          "name": "Succinchlorimide [HSDB]",
          "stdName": "SUCCINCHLORIMIDE [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af12de0a-35a1-412a-a281-ab70cc26d4f6",
            "7363fb6a-c030-45b7-9270-2c7aa579d70e"
          ],
          "display_name": false
        },
        {
          "uuid": "d32d8039-7c51-4664-abf6-f4da6c65b44b",
          "name": "Succinchlorimide [MART.]",
          "stdName": "SUCCINCHLORIMIDE [MART.]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "8c5596f9-9c48-49e1-8857-8d551e9151fd"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "9389f666-083e-4d60-93b8-43e0cb2517bd",
          "citation": "MERCK",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "28b98dc1-f265-437a-a86d-178513806e22",
          "citation": "DIRECTORY OF MICROBICIDES FOR THE PROTECTION OF MATERIALS",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7363fb6a-c030-45b7-9270-2c7aa579d70e",
          "citation": "WEB PAGE",
          "doc_type": "WEB PAGE",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "8c5596f9-9c48-49e1-8857-8d551e9151fd",
          "citation": "MARTINDALE 2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f9bc75a9-5b91-4166-a34e-fbf3622dbc2b",
          "citation": "MERCK INDEX",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "af12de0a-35a1-412a-a281-ab70cc26d4f6",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "99c5d868-7619-454c-aec3-3a1bdbb55610",
          "citation": "CFSAN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "e52cc4a5-c757-4d64-8c45-3adf87c43bf0",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "356c8c31-3c5b-4731-83df-48103318923f",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390844000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "38163513-bc6d-40c4-97a2-c977499bf089",
          "citation": "SRS import [0FWP306H7X]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=0FWP306H7X",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390844000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7179416b-fb20-46a7-ad54-c974c53c05ad",
          "citation": "SUCCINCHLORIMIDE [MART.]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "a7829d21-8c43-44b9-9587-dcdbedf959da",
          "citation": "N-CHLOROSUCCINIMIDE [MI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "0601718f-29c0-4ad8-8e51-3df09e367a17",
          "citation": "SUCCINCHLORIMIDE [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "0b6afbd3-1661-2285-7d9f-61de6ead7d7f",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+128-09-6",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "857d2ae8-8041-e270-4b74-2e99f0b5b213",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=128-09-6",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "5e7d9192-4088-6638-8a72-78c6b2aff1ba",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "1b42eeb0-69a6-3d75-8ff4-0f9ef6b84770",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "817d43b5-5233-4dcb-9526-01c217d5fbb4",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "63598222-edfc-4e1b-8f89-1ce6f56ad77d",
          "id": "63598222-edfc-4e1b-8f89-1ce6f56ad77d",
          "molfile": "\n  Marvin  01132105092D          \n\n  8  8  0  0  0  0            999 V2000\n    1.4292    0.0000    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\n    1.4292   -0.8386    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7772   -1.2911    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -1.0380    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    1.0150   -2.0811    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8127   -2.0811    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.0888   -1.2911    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.8711   -1.0610    0.0000 O   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  7  2  1  0  0  0  0\n  4  3  2  0  0  0  0\n  5  3  1  0  0  0  0\n  6  5  1  0  0  0  0\n  6  7  1  0  0  0  0\n  8  7  2  0  0  0  0\nM  END",
          "smiles": "C1CC(=O)N(C1=O)Cl",
          "formula": "C4H4ClNO2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "5492dd57-0ad7-4110-b0c4-45f47dc5e640"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "133.5332",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "ca2a068f-b2f2-4997-b0e5-a3ac3cb5e424",
      "version": "10",
      "structure": {
        "id": "5118d586-8017-4652-ba33-240f06784ef5",
        "molfile": "\n   JSDraw208122416452D\n\n  8  8  0  0  0  0              0 V2000\n   24.7000   -5.7148    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   23.1400   -5.7148    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   22.6616   -7.1916    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   21.1768   -7.6700    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   23.9200   -8.1172    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n   25.1784   -7.1916    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   26.6632   -7.6700    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   23.9200   -9.6772    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  1  0  0  0  0\n  3  4  2  0  0  0  0\n  3  5  1  0  0  0  0\n  5  6  1  0  0  0  0\n  1  6  1  0  0  0  0\n  6  7  2  0  0  0  0\n  5  8  1  0  0  0  0\nM  END",
        "smiles": "C1CC(=O)N(C1=O)Cl",
        "formula": "C4H4ClNO2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "133.5332",
        "optical_activity": "NONE",
        "references": [
          "38163513-bc6d-40c4-97a2-c977499bf089",
          "9389f666-083e-4d60-93b8-43e0cb2517bd"
        ],
        "stereo_centers": 0
      },
      "unii": "0FWP306H7X"
    }
  ]
}