{
  "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": "91741c4e-b837-465c-95a1-120fcb1bf49b",
          "code": "BUTYL ISOBUTYRATE",
          "comments": "JECFA|FUNCTIONAL CLASSIFICATION|Flavouring Agent",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=1450",
          "code_system": "JECFA EVALUATION",
          "references": [
            "5a81aa5b-21f0-4d55-a13f-bb4bcde1f63f"
          ]
        },
        {
          "uuid": "649c353a-b7fd-4d0b-bd19-7bf7e5beb31e",
          "code": "97-87-0",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=97-87-0",
          "code_system": "CAS",
          "references": [
            "5a81aa5b-21f0-4d55-a13f-bb4bcde1f63f",
            "a89fee25-c837-47a5-85cd-d2cf154cec66"
          ]
        },
        {
          "uuid": "b732d5cb-a4a5-4585-a19f-b7c3abaaba52",
          "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": [
            "5a81aa5b-21f0-4d55-a13f-bb4bcde1f63f"
          ]
        },
        {
          "uuid": "395e2126-4f1a-41a7-b6a5-9ee90bf8239d",
          "code": "202-614-6",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.002.377",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "5a81aa5b-21f0-4d55-a13f-bb4bcde1f63f"
          ]
        },
        {
          "uuid": "bfe2499a-48f5-46cf-aa35-380d4ea40bd3",
          "code": "7353",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/7353",
          "code_system": "PUBCHEM",
          "references": [
            "5a81aa5b-21f0-4d55-a13f-bb4bcde1f63f"
          ]
        },
        {
          "uuid": "51933ecd-f0a1-f6f6-459d-2c6d5d8da3cc",
          "code": "DTXSID9073888",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID9073888",
          "code_system": "EPA CompTox",
          "references": [
            "34fdf606-b5e2-a282-a375-34cc0bda8197"
          ]
        },
        {
          "uuid": "d07e93f9-36f0-4acf-8f6d-02e0e694318a",
          "code": "PW9UJ5C0F3",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "016c01aa-b6ac-ac11-f3fa-2217c45d1609",
          "code": "207",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/207/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "c95a210b-6fa3-4f3e-94f2-512f63186108"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "fb9abf3d-bb4e-4ea4-a3b1-cb9d6765e87a",
          "name": "BUTYL ISOBUTYRATE",
          "stdName": "BUTYL ISOBUTYRATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "ac481d99-da16-4831-977e-1f5b126c4e8b",
            "e5689a20-cf53-4b5f-8c14-816ec6fa423f",
            "028caa52-5f8a-4517-af29-87d01c6da432",
            "41df9a60-1a01-4f0b-bdb3-494122836784",
            "d6e75907-523a-498f-9353-e6f4400a84c3"
          ],
          "display_name": true
        },
        {
          "uuid": "20731dab-85ec-4032-ab7d-a071a5dd3b2f",
          "name": "BUTYL ISOBUTYRATE [FCC]",
          "stdName": "BUTYL ISOBUTYRATE [FCC]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "41df9a60-1a01-4f0b-bdb3-494122836784",
            "d6e75907-523a-498f-9353-e6f4400a84c3"
          ],
          "display_name": false
        },
        {
          "uuid": "7b071316-f8ed-4393-93bb-fc9ce2f4fb32",
          "name": "BUTYL ISOBUTYRATE [FHFI]",
          "stdName": "BUTYL ISOBUTYRATE [FHFI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "ac481d99-da16-4831-977e-1f5b126c4e8b",
            "d6e75907-523a-498f-9353-e6f4400a84c3"
          ],
          "display_name": false
        },
        {
          "uuid": "e1aedc58-41e1-4998-baa2-26fb264d2b2b",
          "name": "FEMA NO. 2188",
          "stdName": "FEMA NO. 2188",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "41df9a60-1a01-4f0b-bdb3-494122836784",
            "d6e75907-523a-498f-9353-e6f4400a84c3"
          ],
          "display_name": false
        },
        {
          "uuid": "adc28b3c-6b20-41aa-b97d-f54cd9d19edf",
          "name": "ISOBUTYRIC ACID, BUTYL ESTER",
          "stdName": "ISOBUTYRIC ACID, BUTYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d6e75907-523a-498f-9353-e6f4400a84c3",
            "244437c9-08dd-4669-8d14-681421ae5b4c"
          ],
          "display_name": false
        },
        {
          "uuid": "af2c4859-52a3-4b76-a54c-0ef1c6339ee3",
          "name": "PROPANOIC ACID, 2-METHYL-, BUTYL ESTER",
          "stdName": "PROPANOIC ACID, 2-METHYL-, BUTYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d6e75907-523a-498f-9353-e6f4400a84c3",
            "244437c9-08dd-4669-8d14-681421ae5b4c"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "4ba52c15-2bcf-4ee5-b975-11eb763ea22f",
          "citation": "SRS import [PW9UJ5C0F3]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=PW9UJ5C0F3",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390818000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "028caa52-5f8a-4517-af29-87d01c6da432",
          "citation": "BUTYL ISOBUTYRATE [FHFI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "e5689a20-cf53-4b5f-8c14-816ec6fa423f",
          "citation": "BUTYL ISOBUTYRATE [FCC]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "41df9a60-1a01-4f0b-bdb3-494122836784",
          "citation": "FCC",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "d6e75907-523a-498f-9353-e6f4400a84c3",
          "citation": "USP FOOD CHEMICALS CODEX",
          "doc_type": "USP FOOD CHEMICALS CODEX",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "244437c9-08dd-4669-8d14-681421ae5b4c",
          "citation": "ChemID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ac481d99-da16-4831-977e-1f5b126c4e8b",
          "citation": "FHFI",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "5a81aa5b-21f0-4d55-a13f-bb4bcde1f63f",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390818000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "34fdf606-b5e2-a282-a375-34cc0bda8197",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=97-87-0",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "a89fee25-c837-47a5-85cd-d2cf154cec66",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "c95a210b-6fa3-4f3e-94f2-512f63186108",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "09713792-5107-4707-aabc-bee034a09685",
          "id": "09713792-5107-4707-aabc-bee034a09685",
          "molfile": "\n  Marvin  01132100452D          \n\n 10  9  0  0  0  0            999 V2000\n   -2.7849    0.2188    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.0764   -0.1922    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.3441    0.2188    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.6468   -0.2104    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0702    0.1978    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7843   -0.2104    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7843   -1.0410    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    1.5012    0.1978    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.2097   -0.2104    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.5012    1.0284    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  1  0  0  0  0\n  3  2  1  0  0  0  0\n  4  3  1  0  0  0  0\n  5  4  1  0  0  0  0\n  6  5  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\n  8 10  1  0  0  0  0\nM  END",
          "smiles": "CCCCOC(=O)C(C)C",
          "formula": "C8H16O2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "f6994a14-26da-4e54-bb83-05c868adf2af"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "144.2117",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "898512b9-e4d0-43ad-81e0-dd46b0f688e7",
      "version": "4",
      "structure": {
        "id": "af4c6fbc-54e7-4711-a9ff-b05c29db8717",
        "molfile": "\n  Marvin  01132109062D          \n\n 10  9  0  0  0  0            999 V2000\n    0.7843   -0.2104    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0702    0.1978    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    1.5012    0.1978    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7843   -1.0410    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.6468   -0.2104    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.2097   -0.2104    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.5012    1.0284    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.3441    0.2188    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.0764   -0.1922    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.7849    0.2188    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  1  3  1  0  0  0  0\n  1  4  2  0  0  0  0\n  2  5  1  0  0  0  0\n  3  6  1  0  0  0  0\n  3  7  1  0  0  0  0\n  5  8  1  0  0  0  0\n  8  9  1  0  0  0  0\n  9 10  1  0  0  0  0\nM  END",
        "smiles": "CCCCOC(=O)C(C)C",
        "formula": "C8H16O2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "144.2117",
        "optical_activity": "NONE",
        "references": [
          "41df9a60-1a01-4f0b-bdb3-494122836784",
          "4ba52c15-2bcf-4ee5-b975-11eb763ea22f"
        ],
        "stereo_centers": 0
      },
      "unii": "PW9UJ5C0F3"
    }
  ]
}