{
  "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": "2608ae82-0f76-4ea6-b570-842da296cbe0",
          "code": "2445-72-9",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=2445-72-9",
          "code_system": "CAS",
          "references": [
            "9499566b-9a48-43fe-8022-70771394e3b4",
            "30b02c60-2eb8-4b53-b2f5-2a571052e0d3"
          ]
        },
        {
          "uuid": "b7bd0cef-8ce7-4656-8434-9f2edef9e8aa",
          "code": "219-494-6",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.017.722",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "9499566b-9a48-43fe-8022-70771394e3b4"
          ]
        },
        {
          "uuid": "1d1c0819-3bb5-4dd1-b201-6b25c6011381",
          "code": "75554",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/75554",
          "code_system": "PUBCHEM",
          "references": [
            "9499566b-9a48-43fe-8022-70771394e3b4"
          ]
        },
        {
          "uuid": "39bac7e0-0dca-81d9-8438-1647e8fde624",
          "code": "DTXSID5074341",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID5074341",
          "code_system": "EPA CompTox",
          "references": [
            "c0e7ea2f-4b81-a792-0d3f-a38e89be5cb6"
          ]
        },
        {
          "uuid": "0994004b-33e3-4d75-a057-296692289c5a",
          "code": "7UEX06WJZW",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "469534ac-9848-4b9c-a0f0-2db08420ea2e",
          "name": "2-METHYLPROPIONIC ACID PENTYL ESTER",
          "stdName": "2-METHYLPROPIONIC ACID PENTYL ESTER",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5eb93597-a13b-4942-9b08-3941d82de430",
            "ab8a967c-2fce-4e8a-84dd-8e181bd0b65e"
          ],
          "display_name": false
        },
        {
          "uuid": "cddd8771-56b3-4099-99dc-10e2fb1db7a9",
          "name": "AMYL ISOBUTYRATE",
          "stdName": "AMYL ISOBUTYRATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "ab8a967c-2fce-4e8a-84dd-8e181bd0b65e"
          ],
          "display_name": true
        },
        {
          "uuid": "2e18875a-2e1e-48e2-8648-048194cb502e",
          "name": "ISOBUTYRIC ACID, PENTYL ESTER",
          "stdName": "ISOBUTYRIC ACID, PENTYL ESTER",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5eb93597-a13b-4942-9b08-3941d82de430",
            "ab8a967c-2fce-4e8a-84dd-8e181bd0b65e"
          ],
          "display_name": false
        },
        {
          "uuid": "52cd1113-6938-446b-9528-d432b87e0441",
          "name": "N-PENTYL 2-METHYLPROPANOATE",
          "stdName": "N-PENTYL 2-METHYLPROPANOATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5eb93597-a13b-4942-9b08-3941d82de430",
            "ab8a967c-2fce-4e8a-84dd-8e181bd0b65e"
          ],
          "display_name": false
        },
        {
          "uuid": "2cfa52d1-9a68-4427-be2b-b2f86c1d71d3",
          "name": "PENTYL 2-METHYLPROPANOATE",
          "stdName": "PENTYL 2-METHYLPROPANOATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5eb93597-a13b-4942-9b08-3941d82de430",
            "ab8a967c-2fce-4e8a-84dd-8e181bd0b65e"
          ],
          "display_name": false
        },
        {
          "uuid": "20e44d78-c63b-4b16-a190-ba8682934240",
          "name": "PENTYL 2-METHYLPROPIONATE",
          "stdName": "PENTYL 2-METHYLPROPIONATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5eb93597-a13b-4942-9b08-3941d82de430",
            "ab8a967c-2fce-4e8a-84dd-8e181bd0b65e"
          ],
          "display_name": false
        },
        {
          "uuid": "989c0855-6e67-47c9-8b96-5bb4f13e81e8",
          "name": "PENTYL ISOBUTYRATE",
          "stdName": "PENTYL ISOBUTYRATE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5eb93597-a13b-4942-9b08-3941d82de430",
            "ab8a967c-2fce-4e8a-84dd-8e181bd0b65e"
          ],
          "display_name": false
        },
        {
          "uuid": "741fc750-7acc-418b-b4c3-d2f568d693a5",
          "name": "PROPANOIC ACID, 2-METHYL-, PENTYL ESTER",
          "stdName": "PROPANOIC ACID, 2-METHYL-, PENTYL ESTER",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5eb93597-a13b-4942-9b08-3941d82de430",
            "66d14f2a-9efc-4830-ab0e-ca7c54df593b"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "ab8a967c-2fce-4e8a-84dd-8e181bd0b65e",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "66d14f2a-9efc-4830-ab0e-ca7c54df593b",
          "citation": "STn",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "5eb93597-a13b-4942-9b08-3941d82de430",
          "citation": "STN (SCIFINDER)",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "9499566b-9a48-43fe-8022-70771394e3b4",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390992000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "d9a2dc1e-728a-4705-a8ca-b8668f68a935",
          "citation": "SRS import [7UEX06WJZW]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=7UEX06WJZW",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390992000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ad66ece2-ec44-44b6-9a30-ac66e63c3eb4",
          "citation": "CHEMID  2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "c0e7ea2f-4b81-a792-0d3f-a38e89be5cb6",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=2445-72-9",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "30b02c60-2eb8-4b53-b2f5-2a571052e0d3",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "8ed86817-5431-44c2-b898-c7cff21384e1",
          "id": "8ed86817-5431-44c2-b898-c7cff21384e1",
          "molfile": "\n  Marvin  01132107242D          \n\n 11 10  0  0  0  0            999 V2000\n    4.2036   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9211   -4.5679    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.6274   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3448   -4.5679    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.0557   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.7685   -4.5679    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4860   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4860   -5.8008    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    9.1923   -4.5679    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.9098   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.1923   -3.7429    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  7  6  1  0  0  0  0\n  8  7  2  0  0  0  0\n  7  9  1  0  0  0  0\n  9 10  1  0  0  0  0\n  9 11  1  0  0  0  0\nM  END",
          "smiles": "CCCCCOC(=O)C(C)C",
          "formula": "C9H18O2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "ede8c7dc-4fff-4ca1-8066-e387b61a0ba6"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "158.2384",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "00d26c39-3f60-4de7-b32c-18e8675476f5",
      "version": "3",
      "structure": {
        "id": "6fb19345-85e4-466e-b528-92ef72afe775",
        "molfile": "\n  Marvin  01132105482D          \n\n 11 10  0  0  0  0            999 V2000\n    8.4860   -5.8008    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.4860   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.7685   -4.5679    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.0557   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3448   -4.5679    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.6274   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.9211   -4.5679    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2036   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.1923   -4.5679    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.9098   -4.9758    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.1923   -3.7429    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  1  0  0  0  0\n  6  7  1  0  0  0  0\n  7  8  1  0  0  0  0\n  2  9  1  0  0  0  0\n  9 10  1  0  0  0  0\n  9 11  1  0  0  0  0\nM  END",
        "smiles": "CCCCCOC(=O)C(C)C",
        "formula": "C9H18O2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "158.2384",
        "optical_activity": "NONE",
        "references": [
          "ad66ece2-ec44-44b6-9a30-ac66e63c3eb4",
          "d9a2dc1e-728a-4705-a8ca-b8668f68a935"
        ],
        "stereo_centers": 0
      },
      "unii": "7UEX06WJZW"
    }
  ]
}