{
  "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": "828136ab-8154-4875-9d52-6654b2f83ad5",
          "code": "ETHYL 3-(METHYLTHIO)BUTYRATE",
          "comments": "JECFA|FUNCTIONAL CLASSIFICATION|Flavouring Agent",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=116",
          "code_system": "JECFA EVALUATION",
          "references": [
            "10c723b7-9cf9-457a-bd6f-01fddde7deb7"
          ]
        },
        {
          "uuid": "689246ea-060b-4e37-ad3c-e3a4655eff31",
          "code": "233665-96-8",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=233665-96-8",
          "code_system": "CAS",
          "references": [
            "10c723b7-9cf9-457a-bd6f-01fddde7deb7",
            "9a269683-e1b4-4063-828c-33caf3678c94"
          ]
        },
        {
          "uuid": "38888d1d-66f9-4124-9b53-09e5cf987efb",
          "code": "22213645",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/22213645",
          "code_system": "PUBCHEM",
          "references": [
            "10c723b7-9cf9-457a-bd6f-01fddde7deb7"
          ]
        },
        {
          "uuid": "f31def9d-12db-4c8c-b52d-787cd2134cb3",
          "code": "K3KKZ020B3",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "4d1e7648-f8b1-c9c9-69c1-2cfe682ed8c3",
          "code": "DTXSID20946037",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID20946037",
          "code_system": "EPA CompTox"
        },
        {
          "uuid": "630c25f3-808d-757d-639b-5b6a77310705",
          "code": "522",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/522/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "19655ff8-20b8-96df-ec72-fc58f9be0faf"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "d59f44a0-ae6e-4f9d-acbf-6f8aee86861c",
          "name": "BUTANOIC ACID, 3-(METHYLTHIO)-, ETHYL ESTER",
          "stdName": "BUTANOIC ACID, 3-(METHYLTHIO)-, ETHYL ESTER",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d91fb701-1828-4414-aa3e-1186277f488b",
            "9f186748-d104-4b42-985a-25a3dba7dca1"
          ],
          "display_name": false
        },
        {
          "uuid": "4d17016e-d9e6-4063-8f8a-7edcee9e9045",
          "name": "ETHYL 3-(METHYLTHIO)BUTYRATE",
          "stdName": "ETHYL 3-(METHYLTHIO)BUTYRATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a8a49419-952b-4e1e-bd74-d7f7fa3ceed3",
            "d91fb701-1828-4414-aa3e-1186277f488b",
            "a4a0d865-0d1c-400a-90c0-56d05b22190a",
            "8dc09d0b-a5c4-47ae-b031-0a59d1f36e5d"
          ],
          "display_name": true
        },
        {
          "uuid": "d16151a6-e438-4ceb-955f-aec685d1badc",
          "name": "ETHYL 3-(METHYLTHIO)BUTYRATE [FHFI]",
          "stdName": "ETHYL 3-(METHYLTHIO)BUTYRATE [FHFI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d91fb701-1828-4414-aa3e-1186277f488b",
            "a4a0d865-0d1c-400a-90c0-56d05b22190a"
          ],
          "display_name": false
        },
        {
          "uuid": "ca6347b6-ed1c-4fc5-bf91-8861f4ac98af",
          "name": "ETHYL 3-METHYLSULFANYLBUTANOATE",
          "stdName": "ETHYL 3-METHYLSULFANYLBUTANOATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d91fb701-1828-4414-aa3e-1186277f488b",
            "698a9408-9e95-4101-98f8-1acaacd89ead"
          ],
          "display_name": false
        },
        {
          "uuid": "4c97497e-7c69-4a19-a4df-6a5380784daa",
          "name": "FEMA NO. 3836",
          "stdName": "FEMA NO. 3836",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d91fb701-1828-4414-aa3e-1186277f488b",
            "a4a0d865-0d1c-400a-90c0-56d05b22190a"
          ],
          "display_name": false
        },
        {
          "uuid": "aa2e4ac0-4068-4e85-b424-b0fa9d4e8003",
          "name": "TROPICAL 3-THIOBUTYRATE",
          "stdName": "TROPICAL 3-THIOBUTYRATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "d91fb701-1828-4414-aa3e-1186277f488b",
            "698a9408-9e95-4101-98f8-1acaacd89ead"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "a8a49419-952b-4e1e-bd74-d7f7fa3ceed3",
          "citation": "JECFA",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "d91fb701-1828-4414-aa3e-1186277f488b",
          "citation": "JECFA: JOINT FAO/WHO COMMITTEE FOOD ADD",
          "doc_type": "JECFA: JOINT FAO/WHO COMMITTEE FOOD ADD",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "9f186748-d104-4b42-985a-25a3dba7dca1",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "a4a0d865-0d1c-400a-90c0-56d05b22190a",
          "citation": "FHFI",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "698a9408-9e95-4101-98f8-1acaacd89ead",
          "citation": "http://www.thegoodscentscompany.com/data/rw1545861.html",
          "url": "http://www.thegoodscentscompany.com/data/rw1545861.html",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "10c723b7-9cf9-457a-bd6f-01fddde7deb7",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391231000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "a2b2a36a-0b85-42f2-9267-d134b9fe9e90",
          "citation": "SRS import [K3KKZ020B3]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=K3KKZ020B3",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391231000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "8dc09d0b-a5c4-47ae-b031-0a59d1f36e5d",
          "citation": "ETHYL 3-(METHYLTHIO)BUTYRATE [FHFI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "9a269683-e1b4-4063-828c-33caf3678c94",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "19655ff8-20b8-96df-ec72-fc58f9be0faf",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "30548316-43ad-4ad9-ab9d-9a3d4e0c2e83",
          "id": "30548316-43ad-4ad9-ab9d-9a3d4e0c2e83",
          "molfile": "\n  Marvin  01132102352D          \n\n 10  9  0  0  0  0            999 V2000\n    8.0830   -5.8366    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0830   -5.0116    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3695   -4.5991    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3695   -3.7767    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0955   -3.3697    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6434   -3.3697    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9366   -3.7767    0.0000 C   0  0  0  0  0  0  0  0  0  3  0  0\n    5.9366   -4.5982    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.2168   -3.3608    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4970   -3.7746    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  4  5  2  0  0  0  0\n  6  4  1  0  0  0  0\n  7  6  1  0  0  0  0\n  7  8  1  0  0  0  0\n  7  9  1  0  0  0  0\n  9 10  1  0  0  0  0\nM  END",
          "smiles": "CCOC(=O)CC(C)SC",
          "formula": "C7H14O2S",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "RACEMIC",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "ed15aa9b-acd6-4f51-80e2-471d53f87fcc"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "162.2512",
          "optical_activity": "( + / - )",
          "stereo_centers": 1
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "442a357a-a1e9-477b-8dbc-06175b2f2808",
      "version": "4",
      "structure": {
        "id": "5b9ba907-d328-4b83-ad1e-1e045b898f36",
        "molfile": "\n  Marvin  01132104452D          \n\n 10  9  0  0  0  0            999 V2000\n    8.0830   -5.8366    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0830   -5.0116    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3695   -4.5991    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0955   -3.3697    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4970   -3.7746    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3695   -3.7767    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9366   -4.5982    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.2168   -3.3608    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6434   -3.3697    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9366   -3.7767    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  6  3  1  0  0  0  0\n  2  1  1  0  0  0  0\n 10  8  1  0  0  0  0\n  3  2  1  0  0  0  0\n 10  9  1  0  0  0  0\n  6  4  2  0  0  0  0\n  8  5  1  0  0  0  0\n  9  6  1  0  0  0  0\n 10  7  1  0  0  0  0\nM  END",
        "smiles": "CCOC(=O)CC(C)SC",
        "formula": "C7H14O2S",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "RACEMIC",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "162.2512",
        "optical_activity": "( + / - )",
        "references": [
          "a2b2a36a-0b85-42f2-9267-d134b9fe9e90",
          "9f186748-d104-4b42-985a-25a3dba7dca1"
        ],
        "stereo_centers": 1
      },
      "unii": "K3KKZ020B3"
    }
  ]
}