{
  "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": "4694ba0c-32f3-4e16-b0fa-8b662f38f689",
          "code": "584-03-2",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=584-03-2",
          "code_system": "CAS",
          "references": [
            "febfc489-6bf8-470e-94a8-7ef66b44e1d1",
            "7dcd95dd-ce86-4287-a697-679ba3eb298b"
          ]
        },
        {
          "uuid": "c6393b23-5f42-48af-8d9a-26df6bc4788a",
          "code": "1,2-BUTANEDIOL",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/1,2-Butanediol",
          "code_system": "WIKIPEDIA",
          "references": [
            "febfc489-6bf8-470e-94a8-7ef66b44e1d1"
          ]
        },
        {
          "uuid": "ce81b7b8-9975-4ea1-a5f6-61885abd1204",
          "code": "642201",
          "comments": "EPA PESTICIDE|CONVENTIONAL CHEMICAL",
          "type": "PRIMARY",
          "url": "http://iaspub.epa.gov/apex/pesticides/f?p=CHEMICALSEARCH:3:0::NO:21,3,31,7,12,25:P3_XCHEMICAL_ID:100",
          "code_system": "EPA PESTICIDE CODE",
          "references": [
            "febfc489-6bf8-470e-94a8-7ef66b44e1d1"
          ]
        },
        {
          "uuid": "e9239549-8faf-4bd8-ac12-fca2fa59ff51",
          "code": "1307758",
          "comments": "RxNorm",
          "type": "PRIMARY",
          "url": "https://rxnav.nlm.nih.gov/REST/rxcui/1307758/allProperties.xml?prop=all",
          "code_system": "RXCUI",
          "references": [
            "febfc489-6bf8-470e-94a8-7ef66b44e1d1"
          ]
        },
        {
          "uuid": "8e61987a-6fea-41dc-b635-cf15e0df0046",
          "code": "209-527-2",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.008.663",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "febfc489-6bf8-470e-94a8-7ef66b44e1d1"
          ]
        },
        {
          "uuid": "5915d335-ab9a-48c4-8820-52b398c02ed2",
          "code": "11429",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/11429",
          "code_system": "PUBCHEM",
          "references": [
            "febfc489-6bf8-470e-94a8-7ef66b44e1d1"
          ]
        },
        {
          "uuid": "80e44d7d-13bc-3b8d-519f-1773ea03dce5",
          "code": "1507",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/1507",
          "code_system": "HSDB",
          "references": [
            "08ab205e-9cd3-682f-bbdc-6f167ac01073"
          ]
        },
        {
          "uuid": "a1c82632-f9ab-b9d3-62d5-2d42c712a803",
          "code": "DTXSID6040375",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID6040375",
          "code_system": "EPA CompTox",
          "references": [
            "67678c58-f75e-f6c5-47cc-5e184241c3f2"
          ]
        },
        {
          "uuid": "392a127a-a9a3-4518-bdbc-9efec00d3362",
          "code": "RUN0H01QEU",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "0fdab904-d407-0fc8-bbb2-01fd212eef36",
          "code": "52682",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:52682",
          "code_system": "CHEBI",
          "references": [
            "a6f58014-0e47-5c44-4f91-d1f02269ef1c"
          ]
        },
        {
          "uuid": "05bc0c4a-ffba-f794-936c-72f04437a67e",
          "code": "24242",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=24242",
          "code_system": "NSC",
          "references": [
            "f522039a-4bbf-d281-aab2-c14642d12573"
          ]
        },
        {
          "uuid": "013800ac-af7e-69de-8be0-9103a3f40da3",
          "code": "RUN0H01QEU",
          "type": "PRIMARY",
          "url": "https://dailymed.nlm.nih.gov/dailymed/search.cfm?adv=1&query=RUN0H01QEU",
          "code_system": "DAILYMED",
          "references": [
            "b3f383b3-687c-c6a6-c420-3b8f9d3cc1d2"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "5ed1c862-6ad2-4fb5-aaf4-33a27b245490",
          "name": "(±)-BUTANE-1,2-DIOL",
          "stdName": "(+/-)-BUTANE-1,2-DIOL",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "40430181-f0ee-4e27-b26c-228d39418675",
            "56f65235-078e-4ade-8eb3-a967de3ac4b0"
          ],
          "display_name": false
        },
        {
          "uuid": "6a61feae-a0db-4dd6-9b4d-1264db847721",
          "name": "1,2-BUTANEDIOL",
          "stdName": "1,2-BUTANEDIOL",
          "type": "of",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "03c3c11d-6a9c-4b18-bd95-2fbd25438cfe",
            "c52a95d3-8446-4216-8118-bf3201d3759e",
            "cc300b79-055c-4054-bc57-08dcd035a405",
            "7e687e19-5434-4da6-8ee2-105c63007794",
            "56f65235-078e-4ade-8eb3-a967de3ac4b0",
            "1b07a7f0-8eaf-4df0-aaee-da017e7a46c8"
          ],
          "display_name": true,
          "domains": [
            "cosmetic"
          ],
          "name_orgs": [
            {
              "uuid": "72a752d1-84f3-4e40-b5d5-f5e7da76971e",
              "name_org": "INCI"
            }
          ]
        },
        {
          "uuid": "4631ffca-1f63-4f4f-8479-26497570d851",
          "name": "1,2-BUTANEDIOL [HSDB]",
          "stdName": "1,2-BUTANEDIOL [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "03c3c11d-6a9c-4b18-bd95-2fbd25438cfe",
            "56f65235-078e-4ade-8eb3-a967de3ac4b0"
          ],
          "display_name": false
        },
        {
          "uuid": "ad695e81-0935-4005-babf-26645f9ddfef",
          "name": "1,2-BUTYLENE GLYCOL",
          "stdName": "1,2-BUTYLENE GLYCOL",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "40430181-f0ee-4e27-b26c-228d39418675",
            "56f65235-078e-4ade-8eb3-a967de3ac4b0"
          ],
          "display_name": false
        },
        {
          "uuid": "56f853d8-1de5-4929-ba0a-69006981fbb4",
          "name": "1,2-DIHYDROXYBUTANE",
          "stdName": "1,2-DIHYDROXYBUTANE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "40430181-f0ee-4e27-b26c-228d39418675",
            "56f65235-078e-4ade-8eb3-a967de3ac4b0"
          ],
          "display_name": false
        },
        {
          "uuid": "cd74323d-57f3-4a32-a55b-2c55afc4bcbf",
          "name": "BUTANEDIOL, 1,2-",
          "stdName": "BUTANEDIOL, 1,2-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "56f65235-078e-4ade-8eb3-a967de3ac4b0",
            "1b07a7f0-8eaf-4df0-aaee-da017e7a46c8"
          ],
          "display_name": false
        },
        {
          "uuid": "407adb2a-776e-4e63-b543-266d9e3cf8b2",
          "name": "DL-1,2-BUTANEDIOL",
          "stdName": "DL-1,2-BUTANEDIOL",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "40430181-f0ee-4e27-b26c-228d39418675",
            "56f65235-078e-4ade-8eb3-a967de3ac4b0"
          ],
          "display_name": false
        },
        {
          "uuid": "8d75b784-1bbd-42e3-aaf9-e546a0c6791a",
          "name": "NSC-24242",
          "stdName": "NSC-24242",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "56f65235-078e-4ade-8eb3-a967de3ac4b0",
            "1b07a7f0-8eaf-4df0-aaee-da017e7a46c8"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "1b07a7f0-8eaf-4df0-aaee-da017e7a46c8",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "56f65235-078e-4ade-8eb3-a967de3ac4b0",
          "citation": "CHEMID",
          "doc_type": "CHEMID",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "40430181-f0ee-4e27-b26c-228d39418675",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "cc300b79-055c-4054-bc57-08dcd035a405",
          "citation": "PCPC",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "03c3c11d-6a9c-4b18-bd95-2fbd25438cfe",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "febfc489-6bf8-470e-94a8-7ef66b44e1d1",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391125000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "10e0ba34-30bb-4597-a807-285512c29141",
          "citation": "SRS import [RUN0H01QEU]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=RUN0H01QEU",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391125000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7e687e19-5434-4da6-8ee2-105c63007794",
          "citation": "1,2-BUTANEDIOL [INCI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "c52a95d3-8446-4216-8118-bf3201d3759e",
          "citation": "1,2-BUTANEDIOL [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "08ab205e-9cd3-682f-bbdc-6f167ac01073",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+584-03-2",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "67678c58-f75e-f6c5-47cc-5e184241c3f2",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=584-03-2",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "7dcd95dd-ce86-4287-a697-679ba3eb298b",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "a6f58014-0e47-5c44-4f91-d1f02269ef1c",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "b3f383b3-687c-c6a6-c420-3b8f9d3cc1d2",
          "citation": "DailyMed",
          "doc_type": "DAILYMED",
          "public_domain": true
        },
        {
          "uuid": "f522039a-4bbf-d281-aab2-c14642d12573",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "071d3789-60aa-48e2-ad9e-399ddc17200b",
          "id": "071d3789-60aa-48e2-ad9e-399ddc17200b",
          "molfile": "\n  Marvin  01132100392D          \n\n  6  5  0  0  0  0            999 V2000\n   11.2450   -7.9826    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.9595   -8.3951    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   12.6740   -7.9826    0.0000 C   0  0  0  0  0  0  0  0  0  3  0  0\n   12.6740   -7.1576    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   13.3884   -8.3951    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   14.1029   -7.9826    0.0000 O   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  3  4  1  0  0  0  0\n  5  3  1  0  0  0  0\n  5  6  1  0  0  0  0\nM  END",
          "smiles": "CCC(CO)O",
          "formula": "C4H10O2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "RACEMIC",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "dfb81462-f6e9-4612-9fa6-e8e93215ed4c"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "90.1212",
          "optical_activity": "( + / - )",
          "stereo_centers": 1
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "5b8c2c9f-b147-4d15-bd3b-536619d23ba9",
      "version": "8",
      "structure": {
        "id": "882b9f4a-e114-4278-8453-7fdb8d1a07d5",
        "molfile": "\n  Marvin  01132107042D          \n\n  6  5  0  0  0  0            999 V2000\n   13.3884   -8.3951    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   12.6740   -7.9826    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.9595   -8.3951    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.2450   -7.9826    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   14.1029   -7.9826    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   12.6740   -7.1576    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  2  3  1  0  0  0  0\n  3  4  1  0  0  0  0\n  1  5  1  0  0  0  0\n  2  6  1  0  0  0  0\nM  END",
        "smiles": "CCC(CO)O",
        "formula": "C4H10O2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "RACEMIC",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "90.1212",
        "optical_activity": "( + / - )",
        "references": [
          "40430181-f0ee-4e27-b26c-228d39418675",
          "10e0ba34-30bb-4597-a807-285512c29141"
        ],
        "stereo_centers": 1
      },
      "unii": "RUN0H01QEU"
    }
  ]
}