{
  "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": "c0fb4a83-e83d-4e29-b373-28c7f0056f29",
          "code": "105-76-0",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=105-76-0",
          "code_system": "CAS",
          "references": [
            "47bb79b1-1dfb-4f6d-b03e-ceea2033d411",
            "430776e0-86d4-458a-9d3e-e8dcf060470f"
          ]
        },
        {
          "uuid": "258d9965-bfb2-434e-ad91-b3ed3d26dff5",
          "code": "C048074",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67048074",
          "code_system": "MESH",
          "references": [
            "47bb79b1-1dfb-4f6d-b03e-ceea2033d411"
          ]
        },
        {
          "uuid": "9136f900-113b-45d6-9551-0561a27be689",
          "code": "203-328-4",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.003.027",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "47bb79b1-1dfb-4f6d-b03e-ceea2033d411"
          ]
        },
        {
          "uuid": "2b7c85e5-98d9-4241-8f42-15d772c78c93",
          "code": "1491007",
          "comments": "RxNorm",
          "type": "PRIMARY",
          "url": "https://rxnav.nlm.nih.gov/REST/rxcui/1491007/allProperties.xml?prop=all",
          "code_system": "RXCUI",
          "references": [
            "47bb79b1-1dfb-4f6d-b03e-ceea2033d411"
          ]
        },
        {
          "uuid": "1a5e2d38-a546-475a-b5ac-7a583189e783",
          "code": "5271569",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/5271569",
          "code_system": "PUBCHEM",
          "references": [
            "47bb79b1-1dfb-4f6d-b03e-ceea2033d411"
          ]
        },
        {
          "uuid": "099fb889-08c1-1cf9-2e44-818a4d81b939",
          "code": "DTXSID3026724",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID3026724",
          "code_system": "EPA CompTox",
          "references": [
            "ab61e088-fb8b-5b1e-3f52-d9843ed93a7e"
          ]
        },
        {
          "uuid": "89eddba3-e629-4fbc-8469-2400558df530",
          "code": "4X371TMK9K",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "42f73592-c5d9-7bce-64ce-20354b8b6eac",
          "code": "Dibutyl maleate",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/Dibutyl_maleate",
          "code_system": "WIKIPEDIA",
          "references": [
            "bb795011-a5bd-ea7b-fe35-272a5f74a5c6"
          ]
        },
        {
          "uuid": "3ee4cc24-946f-2574-ff1b-7e1a71cb2005",
          "code": "6711",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=6711",
          "code_system": "NSC",
          "references": [
            "e97eb0e0-a81f-f9c0-66fd-ab1055aba591"
          ]
        },
        {
          "uuid": "c9ee57b0-f162-4819-38dc-1c5482d72fc3",
          "code": "4X371TMK9K",
          "type": "PRIMARY",
          "url": "https://dailymed.nlm.nih.gov/dailymed/search.cfm?adv=1&query=4X371TMK9K",
          "code_system": "DAILYMED",
          "references": [
            "03895792-8d58-1eec-973b-c2ee9c7c2e4f"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "adc2d86a-21c7-4428-9168-ad5bc73813ab",
          "name": "2-BUTENEDIOIC ACID (2Z)-, 1,4-DIBUTYL ESTER",
          "stdName": "2-BUTENEDIOIC ACID (2Z)-, 1,4-DIBUTYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        },
        {
          "uuid": "86ddd498-bf6c-4403-a0b2-0e96f30d8384",
          "name": "2-BUTENEDIOIC ACID (2Z)-, DIBUTYL ESTER",
          "stdName": "2-BUTENEDIOIC ACID (2Z)-, DIBUTYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        },
        {
          "uuid": "20090e2c-022f-413d-a7f7-e80836668f96",
          "name": "2-BUTENEDIOIC ACID (Z)-, DIBUTYL ESTER",
          "stdName": "2-BUTENEDIOIC ACID (Z)-, DIBUTYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        },
        {
          "uuid": "1f60a17a-0dff-4551-b2a9-d2708af5c630",
          "name": "BUTYL MALEATE",
          "stdName": "BUTYL MALEATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2"
          ],
          "display_name": false
        },
        {
          "uuid": "935e150b-2f6f-47c8-9f4d-05ed8203d5a6",
          "name": "DI-N-BUTYL MALEATE",
          "stdName": "DI-N-BUTYL MALEATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        },
        {
          "uuid": "b3436151-190d-49ce-a05f-684d2dde5080",
          "name": "DIBUTYL MALEATE",
          "stdName": "DIBUTYL MALEATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "b1169610-0731-4c7b-85bd-1db3e10e3e91",
            "1e18fc8f-9ca4-4149-a916-dbec8d8a5ee4"
          ],
          "display_name": true
        },
        {
          "uuid": "f7a661d1-08cd-4ec9-ae42-ece6e434732b",
          "name": "MALEIC ACID DI-N-BUTYL ESTER",
          "stdName": "MALEIC ACID DI-N-BUTYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        },
        {
          "uuid": "0c3c610a-df47-420b-b375-c8c933a2e6f0",
          "name": "MALEIC ACID, DIBUTYL ESTER",
          "stdName": "MALEIC ACID, DIBUTYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        },
        {
          "uuid": "2b4b469f-0f0e-4b1c-a8a9-ac61516ba3c2",
          "name": "NSC-6711",
          "stdName": "NSC-6711",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "b1169610-0731-4c7b-85bd-1db3e10e3e91",
            "961e6a4f-ada0-4763-aa2d-bb2a2b4d6f12"
          ],
          "display_name": false
        },
        {
          "uuid": "f5e5a7ef-a227-42d7-99bd-b5983d8b1c56",
          "name": "RC COMONOMER DBM",
          "stdName": "RC COMONOMER DBM",
          "type": "bn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        },
        {
          "uuid": "ae5d5a80-c8c0-4934-a8c4-520214516ffc",
          "name": "STAFLEX DBM",
          "stdName": "STAFLEX DBM",
          "type": "bn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        },
        {
          "uuid": "8c5f1b52-2858-489b-ae89-2e124270ab87",
          "name": "VINAVIL CF 5",
          "stdName": "VINAVIL CF 5",
          "type": "bn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
            "b1169610-0731-4c7b-85bd-1db3e10e3e91"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "6fc39632-63ed-40b2-9134-c9661e2fd6f2",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "b1169610-0731-4c7b-85bd-1db3e10e3e91",
          "citation": "STN (SCIFINDER)",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "961e6a4f-ada0-4763-aa2d-bb2a2b4d6f12",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "1e18fc8f-9ca4-4149-a916-dbec8d8a5ee4",
          "citation": "chemid",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "47bb79b1-1dfb-4f6d-b03e-ceea2033d411",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389728000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "9055883f-d2af-48c3-8548-264100b2c776",
          "citation": "SRS import [4X371TMK9K]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=4X371TMK9K",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389728000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ab61e088-fb8b-5b1e-3f52-d9843ed93a7e",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=105-76-0",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "bb795011-a5bd-ea7b-fe35-272a5f74a5c6",
          "citation": "WIKI",
          "doc_type": "WIKI",
          "public_domain": true
        },
        {
          "uuid": "ec820315-0df0-5019-0c92-1a996dc42846",
          "citation": "PCPC",
          "doc_type": "PERSONAL CARE PRODUCTS COUNCIL",
          "public_domain": true
        },
        {
          "uuid": "430776e0-86d4-458a-9d3e-e8dcf060470f",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "e97eb0e0-a81f-f9c0-66fd-ab1055aba591",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "03895792-8d58-1eec-973b-c2ee9c7c2e4f",
          "citation": "DailyMed",
          "doc_type": "DAILYMED",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "d69e180a-120e-4ec3-b173-95ebff92cf37",
          "id": "d69e180a-120e-4ec3-b173-95ebff92cf37",
          "molfile": "\n  Marvin  01132111072D          \n\n 16 15  0  0  0  0            999 V2000\n    2.4125   -7.9042    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.2375   -7.9125    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.6542   -8.6292    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4792   -8.6292    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.8917   -7.9167    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.7167   -7.9167    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.1292   -7.2042    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    6.1375   -8.6375    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.9625   -8.6375    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3667   -7.9167    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.9542   -7.2042    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.1917   -7.9167    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.6042   -8.6292    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4292   -8.6292    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.8375   -7.9167    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.6625   -7.9167    0.0000 C   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  1  0  0  0  0\n  4  5  1  0  0  0  0\n  5  6  1  0  0  0  0\n  7  6  2  0  0  0  0\n  6  8  1  0  0  0  0\n  9  8  2  0  0  0  0\n 10  9  1  0  0  0  0\n 11 10  2  0  0  0  0\n 12 10  1  0  0  0  0\n 13 12  1  0  0  0  0\n 14 13  1  0  0  0  0\n 15 14  1  0  0  0  0\n 16 15  1  0  0  0  0\nM  END",
          "smiles": "CCCCOC(=O)/C=C\\C(=O)OCCCC",
          "formula": "C12H20O4",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "acd32e50-d8ca-4864-a00e-3a47faaea149"
          },
          "defined_stereo": 0,
          "ez_centers": 1,
          "molecular_weight": "228.2853",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "5402a72b-6349-49c9-9b47-dbab5139190a",
      "version": "7",
      "structure": {
        "id": "df7caebe-fb32-42a2-b1ea-fbfca173c6a9",
        "molfile": "\n  Marvin  01132111352D          \n\n 16 15  0  0  0  0            999 V2000\n    6.1375   -8.6375    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.9625   -8.6375    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3667   -7.9167    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.7167   -7.9167    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.1292   -7.2042    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    6.9542   -7.2042    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.1917   -7.9167    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    4.8917   -7.9167    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.6042   -8.6292    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4792   -8.6292    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4292   -8.6292    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.6542   -8.6292    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.8375   -7.9167    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.2375   -7.9125    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.4125   -7.9042    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.6625   -7.9167    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  2  1  0  0  0  0\n  4  1  1  0  0  0  0\n  5  4  2  0  0  0  0\n  6  3  2  0  0  0  0\n  7  3  1  0  0  0  0\n  8  4  1  0  0  0  0\n  9  7  1  0  0  0  0\n 10  8  1  0  0  0  0\n 11  9  1  0  0  0  0\n 12 10  1  0  0  0  0\n 13 11  1  0  0  0  0\n 14 12  1  0  0  0  0\n 15 14  1  0  0  0  0\n 16 13  1  0  0  0  0\nM  END",
        "smiles": "CCCCOC(=O)/C=C\\C(=O)OCCCC",
        "formula": "C12H20O4",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 1,
        "molecular_weight": "228.2853",
        "optical_activity": "NONE",
        "references": [
          "9055883f-d2af-48c3-8548-264100b2c776",
          "961e6a4f-ada0-4763-aa2d-bb2a2b4d6f12"
        ],
        "stereo_centers": 0
      },
      "unii": "4X371TMK9K"
    }
  ]
}