{
  "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": "535163fd-b378-45ec-82f8-3bd0dd47aa74",
          "code": "26131-91-9",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=26131-91-9",
          "code_system": "CAS",
          "references": [
            "f47f8120-e61a-4e00-abca-dc3469696906",
            "e6187888-7c3c-4af0-869e-68abd39f7f3f"
          ]
        },
        {
          "uuid": "8d55d24a-f450-409b-8ca4-b0fbfce69420",
          "code": "2-ISOBUTYL-4,5-DIMETHYLOXAZOLE",
          "comments": "JECFA|FUNCTIONAL CLASSIFICATION|Flavouring Agent",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=5509",
          "code_system": "JECFA EVALUATION",
          "references": [
            "f47f8120-e61a-4e00-abca-dc3469696906"
          ]
        },
        {
          "uuid": "8ebb4c79-d443-40b2-bb80-ab06688261f1",
          "code": "574068",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/574068",
          "code_system": "PUBCHEM",
          "references": [
            "f47f8120-e61a-4e00-abca-dc3469696906"
          ]
        },
        {
          "uuid": "5725afcc-47d2-489a-a481-398e8feb69c6",
          "code": "31DA09P920",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "ebe00630-8c5d-fcc8-4d37-cde6be4f3fa9",
          "code": "DTXSID70865269",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID70865269",
          "code_system": "EPA CompTox"
        },
        {
          "uuid": "79db1a36-f9cc-1b46-c7d1-289511f3976c",
          "code": "1547",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/1547/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "f34fbcb1-a86f-8050-14e7-3b71543b1778"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "50200c4d-b6a3-4e1e-8b7d-4a4e9274c03e",
          "name": "2-ISOBUTYL-4,5-DIMETHYLOXAZOLE",
          "stdName": "2-ISOBUTYL-4,5-DIMETHYLOXAZOLE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "95244183-8d33-4fba-807a-35937ec5c7e8",
            "0dd1c480-25e5-456a-962d-1a31e9478d4a",
            "61be085d-9073-4732-bd17-cd807cf0debc",
            "66403b8c-c7d3-432e-b9e8-d6bbd88fda02"
          ],
          "display_name": true
        },
        {
          "uuid": "39c22fa0-fabe-41e6-93e1-076b3556dc2b",
          "name": "2-ISOBUTYL-4,5-DIMETHYLOXAZOLE [FHFI]",
          "stdName": "2-ISOBUTYL-4,5-DIMETHYLOXAZOLE [FHFI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0dd1c480-25e5-456a-962d-1a31e9478d4a",
            "66403b8c-c7d3-432e-b9e8-d6bbd88fda02"
          ],
          "display_name": false
        },
        {
          "uuid": "8fc904b5-d166-447d-8437-e279c9da2a5e",
          "name": "4,5-DIMETHYL-2-ISOBUTYLOXAZOLE",
          "stdName": "4,5-DIMETHYL-2-ISOBUTYLOXAZOLE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "3cad624f-2345-414d-8d5b-1748a3271733",
            "0dd1c480-25e5-456a-962d-1a31e9478d4a"
          ],
          "display_name": false
        },
        {
          "uuid": "463b8940-d586-4653-b40e-1dc1e0a6a5e9",
          "name": "FEMA NO. 4397",
          "stdName": "FEMA NO. 4397",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0dd1c480-25e5-456a-962d-1a31e9478d4a",
            "66403b8c-c7d3-432e-b9e8-d6bbd88fda02"
          ],
          "display_name": false
        },
        {
          "uuid": "22a5e18f-1a5b-49dd-819a-8b9794142806",
          "name": "OXAZOLE, 2-ISOBUTYL-4,5-DIMETHYL-",
          "stdName": "OXAZOLE, 2-ISOBUTYL-4,5-DIMETHYL-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "3cad624f-2345-414d-8d5b-1748a3271733",
            "0dd1c480-25e5-456a-962d-1a31e9478d4a"
          ],
          "display_name": false
        },
        {
          "uuid": "90013a59-c475-4649-8d10-eadb46454613",
          "name": "OXAZOLE, 4,5-DIMETHYL-2-(2-METHYLPROPYL)-",
          "stdName": "OXAZOLE, 4,5-DIMETHYL-2-(2-METHYLPROPYL)-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "3cad624f-2345-414d-8d5b-1748a3271733",
            "0dd1c480-25e5-456a-962d-1a31e9478d4a"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "61be085d-9073-4732-bd17-cd807cf0debc",
          "citation": "JECFA",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "0dd1c480-25e5-456a-962d-1a31e9478d4a",
          "citation": "JECFA: JOINT FAO/WHO COMMITTEE FOOD ADD",
          "doc_type": "JECFA: JOINT FAO/WHO COMMITTEE FOOD ADD",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "3cad624f-2345-414d-8d5b-1748a3271733",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "66403b8c-c7d3-432e-b9e8-d6bbd88fda02",
          "citation": "FHFI",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f47f8120-e61a-4e00-abca-dc3469696906",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391303000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "da3477b1-5953-405a-9ec5-7dbd9959c6aa",
          "citation": "SRS import [31DA09P920]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=31DA09P920",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391303000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "95244183-8d33-4fba-807a-35937ec5c7e8",
          "citation": "2-ISOBUTYL-4,5-DIMETHYLOXAZOLE [FHFI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "e6187888-7c3c-4af0-869e-68abd39f7f3f",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "f34fbcb1-a86f-8050-14e7-3b71543b1778",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "8f2af728-a1bf-4a7c-b753-9f4e88bdbdde",
          "id": "8f2af728-a1bf-4a7c-b753-9f4e88bdbdde",
          "molfile": "\n  Marvin  01132107262D          \n\n 11 11  0  0  0  0            999 V2000\n    8.6385   -2.2276    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7805   -3.0418    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.5573   -3.3316    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.1575   -3.5701    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3867   -3.2803    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.1540   -2.4938    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3419   -2.4938    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8431   -1.8215    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.0954   -3.2586    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.3029   -3.5524    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.7145   -3.7377    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  1  0  0  0  0\n  2  3  1  0  0  0  0\n  4  2  1  0  0  0  0\n  5  4  1  0  0  0  0\n  6  5  2  0  0  0  0\n 11  5  1  0  0  0  0\n  7  6  1  0  0  0  0\n  7  8  1  0  0  0  0\n  7  9  2  0  0  0  0\n  9 10  1  0  0  0  0\n  9 11  1  0  0  0  0\nM  END",
          "smiles": "CC(C)Cc1nc(C)c(C)o1",
          "formula": "C9H15NO",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "445c8a87-ddf3-414b-8dfa-478e8a4c17a3"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "153.2218",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "17c11118-2b8c-47ff-81ce-72811edc72a1",
      "version": "4",
      "structure": {
        "id": "7017682f-9d52-4c6a-ae97-89800501b870",
        "molfile": "\n  Marvin  01132105492D          \n\n 11 11  0  0  0  0            999 V2000\n    8.6385   -2.2276    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.5573   -3.3316    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7805   -3.0418    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.1575   -3.5701    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3867   -3.2803    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.3029   -3.5524    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.7145   -3.7377    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8431   -1.8215    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.1540   -2.4938    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    6.0954   -3.2586    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3419   -2.4938    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  7  5  1  0  0  0  0\n  3  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  9  5  2  0  0  0  0\n 10  6  1  0  0  0  0\n 10  7  1  0  0  0  0\n 11  8  1  0  0  0  0\n 11  9  1  0  0  0  0\n 11 10  2  0  0  0  0\nM  END",
        "smiles": "CC(C)Cc1nc(C)c(C)o1",
        "formula": "C9H15NO",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "153.2218",
        "optical_activity": "NONE",
        "references": [
          "3cad624f-2345-414d-8d5b-1748a3271733",
          "da3477b1-5953-405a-9ec5-7dbd9959c6aa"
        ],
        "stereo_centers": 0
      },
      "unii": "31DA09P920"
    }
  ]
}