{
  "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": "2026-09-09",
    "results": {
      "skip": 0,
      "limit": 1,
      "total": 1
    }
  },
  "results": [
    {
      "codes": [
        {
          "uuid": "8fc1ac41-bc8d-4a58-8d21-189c52d7632e",
          "code": "m4007",
          "comments": "Merck Index",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m4007?q=authorize",
          "code_system": "MERCK INDEX",
          "references": [
            "2d2522f0-a54c-4a3c-a094-465eb514601f"
          ]
        },
        {
          "uuid": "68f461a0-c154-4b36-831e-c3f3a8daf82e",
          "code": "202-504-8",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.002.278",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "2d2522f0-a54c-4a3c-a094-465eb514601f"
          ]
        },
        {
          "uuid": "8f2e47b0-74bb-4b90-9dbf-fde4a6fa9957",
          "code": "7298",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/7298",
          "code_system": "PUBCHEM",
          "references": [
            "2d2522f0-a54c-4a3c-a094-465eb514601f"
          ]
        },
        {
          "uuid": "c0f922d3-f9c6-4f17-8e07-19fb89734140",
          "code": "96-41-3",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=96-41-3",
          "code_system": "CAS",
          "references": [
            "2d2522f0-a54c-4a3c-a094-465eb514601f",
            "328c5d85-4926-4295-8f76-e61e61447e08"
          ]
        },
        {
          "uuid": "169a403c-cdf3-4100-8ec3-da53bbdd9c15",
          "code": "C016327",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67016327",
          "code_system": "MESH",
          "references": [
            "2d2522f0-a54c-4a3c-a094-465eb514601f"
          ]
        },
        {
          "uuid": "1ea33dfd-4383-4fb9-a656-51e857627da3",
          "code": "CYCLOPENTANOL",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/Cyclopentanol",
          "code_system": "WIKIPEDIA",
          "references": [
            "2d2522f0-a54c-4a3c-a094-465eb514601f"
          ]
        },
        {
          "uuid": "797bf48b-6d38-83d6-07a2-83388473dbf0",
          "code": "2821",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/2821",
          "code_system": "HSDB",
          "references": [
            "36c8fd9b-1672-288c-20ff-b3e5beac816d"
          ]
        },
        {
          "uuid": "496d4e58-268a-2b7c-eef7-6465fc137d3b",
          "code": "DTXSID1033371",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID1033371",
          "code_system": "EPA CompTox",
          "references": [
            "89edfed9-bbaa-a252-0483-760b5a1cca9c"
          ]
        },
        {
          "uuid": "43107805-5d17-dbc6-6d6b-09ee48e65c2a",
          "code": "16133",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:16133",
          "code_system": "CHEBI",
          "references": [
            "2c4e2ee6-1286-481b-2012-44f1b32b11d3"
          ]
        },
        {
          "uuid": "a9941753-e640-4625-a98e-a8f5f7c0c2ad",
          "code": "1L43Q07TBU",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "d2be8849-6579-ed44-fec5-1f4019d000d8",
          "code": "49117",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=49117",
          "code_system": "NSC",
          "references": [
            "dfc54de8-a8cd-926c-a4da-5c9b81ae2e28"
          ]
        }
      ],
      "relationships": [
        {
          "uuid": "fc5e869e-c147-4fd0-a159-081fe44d192a",
          "amount": {
            "uuid": "638bdec9-9b9d-4fd3-a788-fb1726780cd6"
          },
          "type": "PARENT->IMPURITY",
          "related_substance": {
            "uuid": "e0a07347-651c-45f2-862a-1f2f138c2df6",
            "refuuid": "572a33bb-89c2-48cd-9623-b51cca98ad0b",
            "name": "Esketamine hydrochloride",
            "unii": "L8P1H35P2Z",
            "linking_id": "L8P1H35P2Z",
            "ref_pname": "Esketamine hydrochloride",
            "substance_class": "reference"
          }
        },
        {
          "uuid": "aeab598a-a9b8-4eb1-9a04-13039a5ffee3",
          "amount": {
            "uuid": "4fa3d373-6835-48ed-8c68-5766be5e4867"
          },
          "type": "IMPURITY->PARENT",
          "related_substance": {
            "uuid": "a4d58084-17dd-4758-9590-74f640dbb42e",
            "refuuid": "572a33bb-89c2-48cd-9623-b51cca98ad0b",
            "name": "Esketamine hydrochloride",
            "unii": "L8P1H35P2Z",
            "linking_id": "L8P1H35P2Z",
            "ref_pname": "Esketamine hydrochloride",
            "substance_class": "reference"
          }
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "2bb2dd54-63b9-4669-94ee-7155999df002",
          "name": "1-CYCLOPENTANOL",
          "stdName": "1-CYCLOPENTANOL",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
            "8f1d8820-a1d9-40f1-b3d0-30eb09a7704b"
          ],
          "display_name": false
        },
        {
          "uuid": "c0745f70-19fd-41d7-bfba-12f49d7f12f1",
          "name": "CYCLOPENTANOL",
          "stdName": "CYCLOPENTANOL",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
            "8048200c-3a3d-4b81-a5ec-f7213aa72b34",
            "fa039014-e635-4a21-8655-88bb01ad006e",
            "71904a8d-b472-48be-911b-92194eff37fe"
          ],
          "display_name": true
        },
        {
          "uuid": "bb927fd4-06f4-4902-ba08-939973b587cf",
          "name": "CYCLOPENTANOL [MI]",
          "stdName": "CYCLOPENTANOL [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
            "8048200c-3a3d-4b81-a5ec-f7213aa72b34"
          ],
          "display_name": false
        },
        {
          "uuid": "acba72f0-26e1-45e0-bb40-79546ec74f6f",
          "name": "CYCLOPENTYL ALCOHOL",
          "stdName": "CYCLOPENTYL ALCOHOL",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
            "8048200c-3a3d-4b81-a5ec-f7213aa72b34"
          ],
          "display_name": false
        },
        {
          "uuid": "05437e8d-98dc-4429-9bd8-5bef9b7fe34e",
          "name": "HYDROXYCYCLOPENTANE",
          "stdName": "HYDROXYCYCLOPENTANE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
            "8048200c-3a3d-4b81-a5ec-f7213aa72b34"
          ],
          "display_name": false
        },
        {
          "uuid": "27cef88b-074c-47bb-bab7-280f9aed5b96",
          "name": "NSC-49117",
          "stdName": "NSC-49117",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
            "71904a8d-b472-48be-911b-92194eff37fe"
          ],
          "display_name": false
        },
        {
          "uuid": "04407cc4-33bf-4d9a-a4f3-56a24b72b366",
          "name": "UN-2244",
          "stdName": "UN-2244",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
            "71904a8d-b472-48be-911b-92194eff37fe"
          ],
          "display_name": false
        },
        {
          "uuid": "a97079b8-e3ed-4736-b778-7431526fcd94",
          "name": "UN2244",
          "stdName": "UN2244",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
            "71904a8d-b472-48be-911b-92194eff37fe"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "71904a8d-b472-48be-911b-92194eff37fe",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "a22041d3-1fa0-40db-a21d-e2e5b0869df1",
          "citation": "CHEMID",
          "doc_type": "CHEMID",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "8048200c-3a3d-4b81-a5ec-f7213aa72b34",
          "citation": "MERCK",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "8f1d8820-a1d9-40f1-b3d0-30eb09a7704b",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "2d2522f0-a54c-4a3c-a094-465eb514601f",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391632000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "e5945101-52e5-4b50-8c85-5a3f6c622497",
          "citation": "SRS import [1L43Q07TBU]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=1L43Q07TBU",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391632000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "fd99e81e-0aee-414a-a018-06c388c6f4d5",
          "citation": "CHEMID RECORD 96-41-3",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "fa039014-e635-4a21-8655-88bb01ad006e",
          "citation": "CYCLOPENTANOL [MI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "36c8fd9b-1672-288c-20ff-b3e5beac816d",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+96-41-3",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "89edfed9-bbaa-a252-0483-760b5a1cca9c",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=96-41-3",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "2c4e2ee6-1286-481b-2012-44f1b32b11d3",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "328c5d85-4926-4295-8f76-e61e61447e08",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "dfc54de8-a8cd-926c-a4da-5c9b81ae2e28",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "8ab4a424-9c37-499d-a42a-5c030f67ddca",
          "id": "8ab4a424-9c37-499d-a42a-5c030f67ddca",
          "molfile": "\n  Marvin  01132107122D          \n\n  6  6  0  0  0  0            999 V2000\n   -1.2755   -0.0018    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.4462   -0.0018    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0335   -0.6694    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.8274   -0.4090    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.8274    0.4090    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0335    0.6694    0.0000 C   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  2  6  1  0  0  0  0\n  3  4  1  0  0  0  0\n  4  5  1  0  0  0  0\n  6  5  1  0  0  0  0\nM  END",
          "smiles": "C1CCC(C1)O",
          "formula": "C5H10O",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "9aae60ee-775d-4ccd-bc18-abccf1a7c273"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "86.1325",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "c6257ab5-ca63-4bbd-8a2f-8e2940dc9dd0",
      "version": "9",
      "structure": {
        "id": "ec9d3965-2c12-4e17-9281-ae49d7b388dd",
        "molfile": "\n  Marvin  01132112142D          \n\n  6  6  0  0  0  0            999 V2000\n   -0.4462   -0.0018    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0335   -0.6694    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0335    0.6694    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.2755   -0.0018    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.8274   -0.4090    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.8274    0.4090    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  1  0  0  0  0\n  2  5  1  0  0  0  0\n  3  6  1  0  0  0  0\n  5  6  1  0  0  0  0\nM  END",
        "smiles": "C1CCC(C1)O",
        "formula": "C5H10O",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "86.1325",
        "optical_activity": "NONE",
        "references": [
          "e5945101-52e5-4b50-8c85-5a3f6c622497",
          "fd99e81e-0aee-414a-a018-06c388c6f4d5"
        ],
        "stereo_centers": 0
      },
      "unii": "1L43Q07TBU"
    }
  ]
}