{
  "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": "2e5c8e34-0f85-45b8-a4d4-4056d214a9d1",
          "code": "BUTYL PROPIONATE",
          "comments": "JECFA|FUNCTIONAL CLASSIFICATION|Flavouring Agent",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=5308",
          "code_system": "JECFA EVALUATION",
          "references": [
            "ba4e3fd8-1d03-4d18-a3ef-1d516553d3e4"
          ]
        },
        {
          "uuid": "aea15cee-f85d-401b-8f53-a05dd06b355f",
          "code": "590-01-2",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=590-01-2",
          "code_system": "CAS",
          "references": [
            "ba4e3fd8-1d03-4d18-a3ef-1d516553d3e4",
            "a2a45a58-93bc-4cdf-8849-84a2c826bb87"
          ]
        },
        {
          "uuid": "48a2d3b6-ed18-40e6-9aa2-5677fe878536",
          "code": "C414503",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67414503",
          "code_system": "MESH",
          "references": [
            "ba4e3fd8-1d03-4d18-a3ef-1d516553d3e4"
          ]
        },
        {
          "uuid": "d6577529-d353-4421-b868-2198408246ea",
          "code": "21 CFR 172.515",
          "comments": "PART 172 -- FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION|Subpart F--Flavoring Agents and Related Substances|Sec. 172.515 Synthetic flavoring substances and adjuvants.",
          "type": "PRIMARY",
          "url": "http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfCFR/CFRSearch.cfm?fr=172.515",
          "code_system": "CFR",
          "references": [
            "ba4e3fd8-1d03-4d18-a3ef-1d516553d3e4"
          ]
        },
        {
          "uuid": "f4fccad4-b0ea-470d-81dd-600c5b47ffaa",
          "code": "m2860",
          "comments": "Merck Index",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m2860?q=authorize",
          "code_system": "MERCK INDEX",
          "references": [
            "ba4e3fd8-1d03-4d18-a3ef-1d516553d3e4"
          ]
        },
        {
          "uuid": "f1d22b30-ad22-41a6-a0f3-e8ebba9f4eef",
          "code": "209-669-5",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.008.791",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "ba4e3fd8-1d03-4d18-a3ef-1d516553d3e4"
          ]
        },
        {
          "uuid": "eed8ede6-b120-4cb6-bf98-b27c364feae7",
          "code": "11529",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/11529",
          "code_system": "PUBCHEM",
          "references": [
            "ba4e3fd8-1d03-4d18-a3ef-1d516553d3e4"
          ]
        },
        {
          "uuid": "edffa6fd-2070-e610-1c9a-cb9a12d166ca",
          "code": "DTXSID5027223",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID5027223",
          "code_system": "EPA CompTox",
          "references": [
            "0231fd9d-3c17-0f09-cb19-9efd076059d3"
          ]
        },
        {
          "uuid": "0a8f54e6-0cb9-42a5-9b13-6030621dd9ad",
          "code": "2NXC4AK99E",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "3366782e-e906-9ca6-a7f8-abec0c30d71e",
          "code": "8449",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=8449",
          "code_system": "NSC",
          "references": [
            "cfdede66-d16b-cce2-8f86-e50538a387bf"
          ]
        },
        {
          "uuid": "b9425bba-3114-8672-8450-7cb60ea4398c",
          "code": "239",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/239/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "5c8444dd-138d-da91-0737-c57c522e0e9c"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "72f10ef9-ed66-4748-bf1d-84dc858816fd",
          "name": "BUTYL PROPANOATE",
          "stdName": "BUTYL PROPANOATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "18153f33-d082-44a3-a31b-7a88f29ba22a",
            "22d0be73-f2a8-4978-b68a-55363b1962ac"
          ],
          "display_name": false
        },
        {
          "uuid": "3bc63270-52e4-4b59-bf59-f2d4b0ad95c3",
          "name": "BUTYL PROPIONATE",
          "stdName": "BUTYL PROPIONATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "e08f350e-4782-45e8-aa46-802851e90a88",
            "d1efe549-0b3b-4aea-9de4-3cda565f8762",
            "4eae8785-f015-4951-876e-92cca5a12701",
            "22d0be73-f2a8-4978-b68a-55363b1962ac"
          ],
          "display_name": true
        },
        {
          "uuid": "872f872b-2af5-45e3-a47c-223d1d8631f2",
          "name": "BUTYL PROPIONATE [FHFI]",
          "stdName": "BUTYL PROPIONATE [FHFI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d1efe549-0b3b-4aea-9de4-3cda565f8762",
            "22d0be73-f2a8-4978-b68a-55363b1962ac"
          ],
          "display_name": false
        },
        {
          "uuid": "ca9df5b3-b98b-4da5-912d-72d37043ead9",
          "name": "FEMA NO. 2211",
          "stdName": "FEMA NO. 2211",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "b208f1c3-7391-4200-8411-1e7840e1ea51"
          ],
          "display_name": false
        },
        {
          "uuid": "16ff3837-b6de-4439-9479-4f42297e907b",
          "name": "N-BUTYL PROPANOATE",
          "stdName": "N-BUTYL PROPANOATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "18153f33-d082-44a3-a31b-7a88f29ba22a",
            "22d0be73-f2a8-4978-b68a-55363b1962ac"
          ],
          "display_name": false
        },
        {
          "uuid": "d5944d8f-39ef-4871-8caa-8ceb79ee8f59",
          "name": "N-BUTYL PROPIONATE",
          "stdName": "N-BUTYL PROPIONATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "f7fa07f4-dd2d-47ae-bea5-6877c7e03ef3",
            "18153f33-d082-44a3-a31b-7a88f29ba22a",
            "d9878264-d086-4f75-bf48-43d045a64009",
            "22d0be73-f2a8-4978-b68a-55363b1962ac"
          ],
          "display_name": false
        },
        {
          "uuid": "01aed7fb-90ec-4d0a-a1f6-d634c2735d7a",
          "name": "N-BUTYL PROPIONATE [MI]",
          "stdName": "N-BUTYL PROPIONATE [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d9878264-d086-4f75-bf48-43d045a64009",
            "22d0be73-f2a8-4978-b68a-55363b1962ac"
          ],
          "display_name": false
        },
        {
          "uuid": "b324192c-1386-4e9f-8e71-42a078822d1a",
          "name": "NSC-8449",
          "stdName": "NSC-8449",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "18153f33-d082-44a3-a31b-7a88f29ba22a",
            "22d0be73-f2a8-4978-b68a-55363b1962ac"
          ],
          "display_name": false
        },
        {
          "uuid": "9378fee7-8e7c-4e42-b150-caaae9d85065",
          "name": "PROPANOIC ACID, BUTYL ESTER",
          "stdName": "PROPANOIC ACID, BUTYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "18153f33-d082-44a3-a31b-7a88f29ba22a",
            "22d0be73-f2a8-4978-b68a-55363b1962ac"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "4eae8785-f015-4951-876e-92cca5a12701",
          "citation": "EAFUS",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "22d0be73-f2a8-4978-b68a-55363b1962ac",
          "citation": "EAFUS",
          "doc_type": "EAFUS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "18153f33-d082-44a3-a31b-7a88f29ba22a",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "b208f1c3-7391-4200-8411-1e7840e1ea51",
          "citation": "CHEMID 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "d1efe549-0b3b-4aea-9de4-3cda565f8762",
          "citation": "FHFI",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "d9878264-d086-4f75-bf48-43d045a64009",
          "citation": "MERCK INDEX",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ba4e3fd8-1d03-4d18-a3ef-1d516553d3e4",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390953000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "88e82950-e269-41e4-9d3b-505337722c7a",
          "citation": "SRS import [2NXC4AK99E]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=2NXC4AK99E",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390953000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "e08f350e-4782-45e8-aa46-802851e90a88",
          "citation": "BUTYL PROPIONATE [FHFI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "f7fa07f4-dd2d-47ae-bea5-6877c7e03ef3",
          "citation": "N-BUTYL PROPIONATE [MI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "0231fd9d-3c17-0f09-cb19-9efd076059d3",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=590-01-2",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "a2a45a58-93bc-4cdf-8849-84a2c826bb87",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "cfdede66-d16b-cce2-8f86-e50538a387bf",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "5c8444dd-138d-da91-0737-c57c522e0e9c",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "07fdda93-6651-4dd1-acc5-2604124ad07d",
          "id": "07fdda93-6651-4dd1-acc5-2604124ad07d",
          "molfile": "\n  Marvin  01132100412D          \n\n  9  8  0  0  0  0            999 V2000\n   -0.7796   -3.3054    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.0651   -3.7179    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.6494   -3.3054    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.3639   -3.7179    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.0783   -3.3054    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7928   -3.7179    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7928   -4.5429    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5073   -3.3054    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2217   -3.7179    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  6  7  2  0  0  0  0\n  6  8  1  0  0  0  0\n  8  9  1  0  0  0  0\nM  END",
          "smiles": "CCCCOC(=O)CC",
          "formula": "C7H14O2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "dc6ed3d8-9515-4e35-bc49-e66cefec9d44"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "130.1851",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "061930a8-d733-4b18-88d6-36a27a405d05",
      "version": "5",
      "structure": {
        "id": "61459de0-fca1-4f04-8ac3-9b52648d892e",
        "molfile": "\n  Marvin  01132105022D          \n\n  9  8  0  0  0  0            999 V2000\n   -0.7796   -3.3054    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.0651   -3.7179    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.6494   -3.3054    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.3639   -3.7179    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.0783   -3.3054    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7928   -3.7179    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5073   -3.3054    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2217   -3.7179    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.7928   -4.5429    0.0000 O   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  6  7  1  0  0  0  0\n  7  8  1  0  0  0  0\n  6  9  2  0  0  0  0\nM  END",
        "smiles": "CCCCOC(=O)CC",
        "formula": "C7H14O2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "130.1851",
        "optical_activity": "NONE",
        "references": [
          "18153f33-d082-44a3-a31b-7a88f29ba22a",
          "88e82950-e269-41e4-9d3b-505337722c7a"
        ],
        "stereo_centers": 0
      },
      "unii": "2NXC4AK99E"
    }
  ]
}