{
  "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": "21820f43-193b-453e-89ae-f0e80762a20e",
          "code": "TRANS-2-HEXENYL ISOVALERATE",
          "comments": "JECFA|FUNCTIONAL CLASSIFICATION|Flavouring Agent",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=5408",
          "code_system": "JECFA EVALUATION",
          "references": [
            "4d394bae-098f-49d3-af3c-4e6ca2122a63"
          ]
        },
        {
          "uuid": "70f1c339-e6eb-4bf8-9e43-15dbabc1e72c",
          "code": "68698-59-9",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=68698-59-9",
          "code_system": "CAS",
          "references": [
            "4d394bae-098f-49d3-af3c-4e6ca2122a63",
            "c6648dc4-3c61-40c1-8a47-5220c2cc9e86"
          ]
        },
        {
          "uuid": "ab4c40c3-aed1-4311-ada4-04080f5640b3",
          "code": "136520-10-0",
          "type": "NON-SPECIFIC STEREOCHEMISTRY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=136520-10-0",
          "code_system": "CAS",
          "references": [
            "4d394bae-098f-49d3-af3c-4e6ca2122a63",
            "8d891535-2c0c-4d80-a11c-065662341223"
          ]
        },
        {
          "uuid": "0824ea1b-4b22-49f8-95dd-e0a934c710de",
          "code": "272-088-0",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.065.515",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "4d394bae-098f-49d3-af3c-4e6ca2122a63"
          ]
        },
        {
          "uuid": "9f38d427-c4e1-499a-b9df-ded7982cda8b",
          "code": "5352460",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/5352460",
          "code_system": "PUBCHEM",
          "references": [
            "4d394bae-098f-49d3-af3c-4e6ca2122a63"
          ]
        },
        {
          "uuid": "cf34017f-17e5-4b31-808f-07e83634d31b",
          "code": "8J63B79Z9Z",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "7c424061-96f1-0a70-6cf0-0379abab7492",
          "code": "172052",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:172052",
          "code_system": "CHEBI",
          "references": [
            "314808be-feb4-ef50-8709-8d6896677421"
          ]
        },
        {
          "uuid": "6740b72e-acaa-d44f-0194-b8aa84038038",
          "code": "DTXSID70887486",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID70887486",
          "code_system": "EPA CompTox",
          "references": [
            "314808be-feb4-ef50-8709-8d6896677421"
          ]
        },
        {
          "uuid": "055c95e7-01c5-08ef-761d-4331db5f70de",
          "code": "1376",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/1376/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "db633500-d6b4-b11a-5ffb-ab3717db660f"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "be7e015b-8e80-4373-bfcc-081bff6b5c0a",
          "name": "(E)-2-HEXENYL ISOVALERATE [FHFI]",
          "stdName": "(E)-2-HEXENYL ISOVALERATE [FHFI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6a995913-ef1f-4a8d-86f9-550041975d6d",
            "c92dcb27-0b18-43fe-8b78-d643d10520b1"
          ],
          "display_name": false
        },
        {
          "uuid": "12a336c2-d86f-47b8-83aa-744936e49e19",
          "name": "(E)-HEX-2-ENYL 3-METHYLBUTANOATE",
          "stdName": "(E)-HEX-2-ENYL 3-METHYLBUTANOATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6a995913-ef1f-4a8d-86f9-550041975d6d",
            "f9027d4f-eee6-4636-8c51-7682b5cabb05"
          ],
          "display_name": false
        },
        {
          "uuid": "0ea1883a-bde4-4344-bfc5-d51261c69cfa",
          "name": "2-HEXENYL ISOVALERATE (2E)-",
          "stdName": "2-HEXENYL ISOVALERATE (2E)-",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6a995913-ef1f-4a8d-86f9-550041975d6d",
            "b2922847-7ff6-476e-8381-50e34672b0b8"
          ],
          "display_name": true
        },
        {
          "uuid": "922d570c-cb6d-4aa6-bd0d-0fd8cd712104",
          "name": "BUTANOIC ACID, 3-METHYL-, (2E)-2-HEXEN-1-YL ESTER",
          "stdName": "BUTANOIC ACID, 3-METHYL-, (2E)-2-HEXEN-1-YL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6a995913-ef1f-4a8d-86f9-550041975d6d",
            "f9027d4f-eee6-4636-8c51-7682b5cabb05"
          ],
          "display_name": false
        },
        {
          "uuid": "a1bce0ef-9d7a-46b5-a09c-1fa7ebc48c0b",
          "name": "BUTANOIC ACID, 3-METHYL-, (2E)-2-HEXENYL ESTER",
          "stdName": "BUTANOIC ACID, 3-METHYL-, (2E)-2-HEXENYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6a995913-ef1f-4a8d-86f9-550041975d6d",
            "f9027d4f-eee6-4636-8c51-7682b5cabb05"
          ],
          "display_name": false
        },
        {
          "uuid": "dd951b3d-4944-4a69-9bc7-3b2af2031d58",
          "name": "BUTANOIC ACID, 3-METHYL-, 2-HEXENYL ESTER, (E)-",
          "stdName": "BUTANOIC ACID, 3-METHYL-, 2-HEXENYL ESTER, (E)-",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6a995913-ef1f-4a8d-86f9-550041975d6d",
            "f9027d4f-eee6-4636-8c51-7682b5cabb05"
          ],
          "display_name": false
        },
        {
          "uuid": "9d451fae-8e00-479a-9ab2-b22e9dbf1e8b",
          "name": "FEMA NO. 3930",
          "stdName": "FEMA NO. 3930",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6a995913-ef1f-4a8d-86f9-550041975d6d",
            "c92dcb27-0b18-43fe-8b78-d643d10520b1"
          ],
          "display_name": false
        },
        {
          "uuid": "3153f7d0-d631-41e5-8ebd-6a8039ac4500",
          "name": "TRANS-2-HEXENYL ISOVALERATE",
          "stdName": "TRANS-2-HEXENYL ISOVALERATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6a995913-ef1f-4a8d-86f9-550041975d6d",
            "ad3b6d66-116c-4f68-a89e-1656f9330df3"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "f9027d4f-eee6-4636-8c51-7682b5cabb05",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "6a995913-ef1f-4a8d-86f9-550041975d6d",
          "citation": "STN (SCIFINDER)",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "c92dcb27-0b18-43fe-8b78-d643d10520b1",
          "citation": "FHFI",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "b2922847-7ff6-476e-8381-50e34672b0b8",
          "citation": "FDA_SRS",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ad3b6d66-116c-4f68-a89e-1656f9330df3",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "4d394bae-098f-49d3-af3c-4e6ca2122a63",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391014000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ec9f0466-6788-488f-902b-5256e28d30bf",
          "citation": "SRS import [8J63B79Z9Z]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=8J63B79Z9Z",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391014000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ebe9367a-f16f-4f05-8a79-b5649f714c44",
          "citation": "CHEMID  2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "314808be-feb4-ef50-8709-8d6896677421",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "c6648dc4-3c61-40c1-8a47-5220c2cc9e86",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "8d891535-2c0c-4d80-a11c-065662341223",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "db633500-d6b4-b11a-5ffb-ab3717db660f",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "ffb3ca44-f4ad-4fe1-9867-6cfe31418ba6",
          "id": "ffb3ca44-f4ad-4fe1-9867-6cfe31418ba6",
          "molfile": "\n  Marvin  01132113142D          \n\n 13 12  0  0  0  0            999 V2000\n    3.5257   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2444   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9520   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.6706   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3784   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.0970   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.8156   -5.5873    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.5233   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.5233   -4.3498    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    9.2419   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.9541   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.6682   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.9541   -4.3498    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  2  0  0  0  0\n  6  5  1  0  0  0  0\n  7  6  1  0  0  0  0\n  8  7  1  0  0  0  0\n  9  8  2  0  0  0  0\n  8 10  1  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  1  0  0  0  0\n 11 13  1  0  0  0  0\nM  END",
          "smiles": "CCC/C=C/COC(=O)CC(C)C",
          "formula": "C11H20O2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "3f692223-c9a3-42bc-8ede-2fb27e1673c5"
          },
          "defined_stereo": 0,
          "ez_centers": 1,
          "molecular_weight": "184.2757",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "4fe94846-9fbf-4c65-9ea7-7377f2f41eb3",
      "version": "5",
      "structure": {
        "id": "9494ae19-fb0c-423b-b419-18e7f37c9d77",
        "molfile": "\n  Marvin  01132107422D          \n\n 13 12  0  0  0  0            999 V2000\n    8.5233   -4.3498    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.5233   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.8156   -5.5873    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.0970   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3784   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.6706   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9520   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2444   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.5257   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.2419   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.9541   -5.1748    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.6682   -5.5873    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.9541   -4.3498    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  2  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  2  0  0  0  0\n  6  7  1  0  0  0  0\n  7  8  1  0  0  0  0\n  8  9  1  0  0  0  0\n  2 10  1  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  1  0  0  0  0\n 11 13  1  0  0  0  0\nM  END",
        "smiles": "CCC/C=C/COC(=O)CC(C)C",
        "formula": "C11H20O2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 1,
        "molecular_weight": "184.2757",
        "optical_activity": "NONE",
        "references": [
          "ebe9367a-f16f-4f05-8a79-b5649f714c44",
          "ec9f0466-6788-488f-902b-5256e28d30bf"
        ],
        "stereo_centers": 0
      },
      "unii": "8J63B79Z9Z"
    }
  ]
}