{
  "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": "b1c089d1-88ae-49a0-8d03-d2a8ccd6336f",
          "code": "117872-63-6",
          "type": "ALTERNATIVE",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=117872-63-6",
          "code_system": "CAS"
        },
        {
          "uuid": "74fa8ab3-e921-4bd8-bd0e-f9981da57a0a",
          "code": "26544-38-7",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=26544-38-7",
          "code_system": "CAS",
          "references": [
            "e10d4333-a422-48c7-a349-598276a1add6"
          ]
        },
        {
          "uuid": "20d1ce8b-32a8-41f4-ba25-79b13070d028",
          "code": "247-781-6",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.043.422",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "e10d4333-a422-48c7-a349-598276a1add6"
          ]
        },
        {
          "uuid": "9108b516-486c-bf1e-c048-21eeb59e8412",
          "code": "4374",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/4374",
          "code_system": "HSDB",
          "references": [
            "7c8413e8-7b18-ca69-987d-2207534450ea"
          ]
        },
        {
          "uuid": "b871df1c-bf43-a1ef-e719-16b2796fdc4b",
          "code": "237745",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/237745",
          "code_system": "PUBCHEM",
          "references": [
            "fba4f0ef-9e86-3724-d3b8-6e176c7babc9"
          ]
        },
        {
          "uuid": "3bedb30f-0058-12ce-880b-b2c14c1b73ca",
          "code": "41536",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=41536",
          "code_system": "NSC",
          "references": [
            "e3672ee6-9dcb-909a-d8a2-773ba2cf3e96"
          ]
        },
        {
          "uuid": "459f6750-37d0-48ab-ba74-442d4d6c5361",
          "code": "JAX3MHB7U8",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "32a38bf7-5ac2-487d-94de-6b245dc31939",
          "name": "2,5-Furandione, dihydro-3,3,4,4-tetra-1-propenyl-",
          "stdName": "2,5-FURANDIONE, DIHYDRO-3,3,4,4-TETRA-1-PROPENYL-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "e9e5efec-26ba-49be-8d35-27a20800797b"
          ],
          "display_name": false
        },
        {
          "uuid": "0839ad40-fdd3-4ec9-8fb0-5cff12598168",
          "name": "2,5-Furandione, dihydro-3-(tetrapropenyl)-",
          "stdName": "2,5-FURANDIONE, DIHYDRO-3-(TETRAPROPENYL)-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "e9e5efec-26ba-49be-8d35-27a20800797b"
          ],
          "display_name": false
        },
        {
          "uuid": "0fcf02e1-f5da-47ba-9251-991b71a51f5a",
          "name": "DSA (CROSSLINKING AGENT)",
          "stdName": "DSA (CROSSLINKING AGENT)",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "e9e5efec-26ba-49be-8d35-27a20800797b"
          ],
          "display_name": false
        },
        {
          "uuid": "01051bda-9fde-43b8-952c-074a7f6c085e",
          "name": "Dihydro-3-(tetrapropenyl)-2,5-furandione",
          "stdName": "DIHYDRO-3-(TETRAPROPENYL)-2,5-FURANDIONE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "43a69eeb-e60e-417c-8e9c-dafd2dce8b42"
          ],
          "display_name": true
        },
        {
          "uuid": "27caf64c-a372-47f0-9ab2-9e52b3fbac17",
          "name": "J209.157G",
          "stdName": "J209.157G",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "383e9c8e-6525-4ba6-8676-49b8051250c6"
          ],
          "display_name": false
        },
        {
          "uuid": "70bd20dc-d768-4e32-b9e2-ed2426ff87b5",
          "name": "NSC-41536",
          "stdName": "NSC-41536",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "e9e5efec-26ba-49be-8d35-27a20800797b"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "43a69eeb-e60e-417c-8e9c-dafd2dce8b42",
          "citation": "CFSAN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "383e9c8e-6525-4ba6-8676-49b8051250c6",
          "citation": "http://nikkajiweb.jst.go.jp/nikkaji_web/pages/top_e.jsp?CONTENT=syosai&SN=J209.157G",
          "url": "http://nikkajiweb.jst.go.jp/nikkaji_web/pages/top_e.jsp?CONTENT=syosai&SN=J209.157G",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "e10d4333-a422-48c7-a349-598276a1add6",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493392890000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7c8413e8-7b18-ca69-987d-2207534450ea",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+25377-73-5",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "8f5f36af-36e6-ac5c-64b8-5d31fa76be4e",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=25377-73-5",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "fba4f0ef-9e86-3724-d3b8-6e176c7babc9",
          "citation": "PUBCHEM",
          "doc_type": "PUBCHEM",
          "public_domain": true
        },
        {
          "uuid": "e9e5efec-26ba-49be-8d35-27a20800797b",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "e3672ee6-9dcb-909a-d8a2-773ba2cf3e96",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "9fb50061-32ec-a19a-fd02-e8d2c68810be",
          "citation": "STARI",
          "doc_type": "CFSAN",
          "public_domain": true
        },
        {
          "uuid": "1f988922-f590-3d13-494c-3ec06926b250",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "fcd07a21-6951-f7e2-5ef7-ac5f51c60df0",
          "citation": "CHEMID",
          "doc_type": "CHEMID",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f650546c-991e-f499-19fd-9547ada8486d",
          "citation": "PUBCHEM",
          "doc_type": "PUBCHEM",
          "public_domain": true
        },
        {
          "uuid": "9dc9f330-f783-45bb-8ed0-862a50586a2d",
          "citation": "PUBCHEM",
          "doc_type": "PUBCHEM",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "3c6ed4f3-88b6-4dd3-9860-1b162b9c557a",
          "id": "3c6ed4f3-88b6-4dd3-9860-1b162b9c557a",
          "molfile": "2,5-Furandione, dihydro-3,3,4,4-tetra-1-propenyl-\n  CDK     01102414542D\n117872-63-6 Copyright (C) 2023 ACS\n 19 19  0  0  0  0  0  0  0  0999 V2000\n    3.6890    2.8623    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.2822    2.2360    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1212    0.7043    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.3100    4.3938    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.5400    5.7275    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000    5.7275    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.7633    3.4473    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0092    4.3526    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4160    3.7261    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.8805    2.6091    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9109    1.4646    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.4350    0.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.3553    6.6954    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.6579    5.5684    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    3.8501    4.3938    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.3564    4.0737    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.6890    5.9254    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.1264    5.4073    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.0959    6.5519    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  2  3  0  0  0\n  1 15  1  0  0  0  0\n  2  3  1  0  0  0  0\n  4  5  2  3  0  0  0\n  4 15  1  0  0  0  0\n  5  6  1  0  0  0  0\n  7  8  2  3  0  0  0\n  7 16  1  0  0  0  0\n  8  9  1  0  0  0  0\n 10 11  2  3  0  0  0\n 10 16  1  0  0  0  0\n 11 12  1  0  0  0  0\n 13 17  2  0  0  0  0\n 14 18  2  0  0  0  0\n 15 16  1  0  0  0  0\n 15 17  1  0  0  0  0\n 16 18  1  0  0  0  0\n 17 19  1  0  0  0  0\n 18 19  1  0  0  0  0\nM  END",
          "smiles": "CC=CC1(C=CC)C(=O)OC(=O)C1(C=CC)C=CC",
          "formula": "C16H20O3",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "95407b3d-8a76-4655-a283-82d4e4ca9609"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "260.3288",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "REPRESENTATIVE",
      "uuid": "dfcece5c-0382-4668-bafb-582938f07ba8",
      "version": "18",
      "structure": {
        "id": "1be8f963-2882-49d2-a0d7-dff7b650d49b",
        "molfile": "2,5-Furandione, dihydro-3,3,4,4-tetra-1-propenyl-\n   JSDraw201102414542D\n\n 19 19  0  0  0  0              0 V2000\n   24.1358   -8.1877    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   22.7107   -8.8221    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   22.5476  -10.3737    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   22.7389   -6.6363    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   21.9589   -5.2853    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   20.3989   -5.2853    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   27.2500   -7.5951    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   28.5120   -6.6781    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   29.9371   -7.3127    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   25.3427   -8.4442    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   26.3865   -9.6035    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   25.9044  -11.0871    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   22.7848   -4.3049    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   28.1562   -5.4465    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   24.2990   -6.6363    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   25.8248   -6.9606    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   24.1358   -5.0849    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   26.6048   -5.6097    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   25.5609   -4.4502    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  2  3  0  0  0\n  1 15  1  0  0  0  0\n  2  3  1  0  0  0  0\n  4  5  2  3  0  0  0\n  4 15  1  0  0  0  0\n  5  6  1  0  0  0  0\n  7  8  2  3  0  0  0\n  7 16  1  0  0  0  0\n  8  9  1  0  0  0  0\n 10 11  2  3  0  0  0\n 10 16  1  0  0  0  0\n 11 12  1  0  0  0  0\n 13 17  2  0  0  0  0\n 14 18  2  0  0  0  0\n 15 16  1  0  0  0  0\n 15 17  1  0  0  0  0\n 16 18  1  0  0  0  0\n 17 19  1  0  0  0  0\n 18 19  1  0  0  0  0\nM  END",
        "smiles": "CC=CC1(C=CC)C(=O)OC(=O)C1(C=CC)C=CC",
        "formula": "C16H20O3",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "260.3288",
        "optical_activity": "NONE",
        "references": [
          "43a69eeb-e60e-417c-8e9c-dafd2dce8b42",
          "e9e5efec-26ba-49be-8d35-27a20800797b"
        ],
        "stereo_centers": 0
      },
      "unii": "JAX3MHB7U8"
    }
  ]
}