{
  "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": "b88962ff-0da5-4076-91ec-375b3dd4c4d7",
          "code": "646-06-0",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=646-06-0",
          "code_system": "CAS",
          "references": [
            "ecafc7d9-1f53-4ede-94cf-57e85df3a4fe",
            "6dcc95c2-e559-4a03-88ac-9da7c999331c"
          ]
        },
        {
          "uuid": "3aecf64e-ba1b-4984-a833-1648694c88b2",
          "code": "C010962",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67010962",
          "code_system": "MESH",
          "references": [
            "ecafc7d9-1f53-4ede-94cf-57e85df3a4fe"
          ]
        },
        {
          "uuid": "27e0b68f-2dbc-4f05-804b-cf516b92ed5f",
          "code": "DIOXOLANE",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/Dioxolane",
          "code_system": "WIKIPEDIA",
          "references": [
            "ecafc7d9-1f53-4ede-94cf-57e85df3a4fe"
          ]
        },
        {
          "uuid": "818dcfd3-b6ed-45a2-8c2c-a9fcaf9bf777",
          "code": "211-463-5",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.010.422",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "ecafc7d9-1f53-4ede-94cf-57e85df3a4fe"
          ]
        },
        {
          "uuid": "7d1f6fd6-aa9e-4fa1-bb58-dcf8654fc61a",
          "code": "12586",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/12586",
          "code_system": "PUBCHEM",
          "references": [
            "ecafc7d9-1f53-4ede-94cf-57e85df3a4fe"
          ]
        },
        {
          "uuid": "ef1d691a-b300-bc3e-15c4-0b1685e512bc",
          "code": "5737",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/5737",
          "code_system": "HSDB",
          "references": [
            "ac9c06b8-89b5-3a7c-3efa-f7a838e86dec"
          ]
        },
        {
          "uuid": "938b80a1-3e7b-7093-7a8d-9592e00169c0",
          "code": "DTXSID4027284",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID4027284",
          "code_system": "EPA CompTox",
          "references": [
            "d40a8e97-6911-6722-7d6e-b0af0f727bf6"
          ]
        },
        {
          "uuid": "85d60008-093d-c1f4-7079-3bfff2f45b63",
          "code": "2383339",
          "type": "PRIMARY",
          "url": "https://rxnav.nlm.nih.gov/REST/rxcui/2383339/allProperties.xml?prop=all",
          "code_system": "RXCUI",
          "references": [
            "cbbfe3e1-1636-72f6-1438-26512fb99800"
          ]
        },
        {
          "uuid": "a5397746-3f8a-4ec1-afe9-98f66ba485bd",
          "code": "Y57RBG19JL",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "956f9c5c-b2bd-2e3b-9ef7-bed3d1396dde",
          "code": "87597",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:87597",
          "code_system": "CHEBI",
          "references": [
            "d8a932f4-594d-681a-656e-5d799093fa6a"
          ]
        },
        {
          "uuid": "a59f6335-adfe-c209-38dd-e07a77584313",
          "code": "Y57RBG19JL",
          "type": "PRIMARY",
          "url": "https://dailymed.nlm.nih.gov/dailymed/search.cfm?adv=1&query=Y57RBG19JL",
          "code_system": "DAILYMED",
          "references": [
            "b67da756-b69e-1c8d-8256-fe4f6f36fbbc"
          ]
        },
        {
          "uuid": "5afde885-a261-6eef-1444-c61ac7b052b1",
          "code": "300000053307",
          "type": "PRIMARY",
          "code_system": "SMS_ID",
          "references": [
            "bb7cfdf3-3c0f-4b2a-809b-e663e8de6ae0"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "383815e7-72ee-4057-a534-a028e238acad",
          "name": "1,3-DIOXACYCLOPENTANE",
          "stdName": "1,3-DIOXACYCLOPENTANE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2e078dd3-0159-49cb-80ad-c99e2419cc6e",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        },
        {
          "uuid": "9f5edf96-e693-4c41-befa-1d13e6b77b1c",
          "name": "1,3-DIOXOLAN",
          "stdName": "1,3-DIOXOLAN",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2e078dd3-0159-49cb-80ad-c99e2419cc6e",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        },
        {
          "uuid": "8859f5c4-e32c-41ff-93bb-3d83616fea12",
          "name": "1,3-DIOXOLANE",
          "stdName": "1,3-DIOXOLANE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2e078dd3-0159-49cb-80ad-c99e2419cc6e",
            "0eb237c0-bcfd-40c1-8387-32be4504c33b",
            "0bc755a7-5f20-4d0b-9e83-1d0aa5040db6",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        },
        {
          "uuid": "3e211f23-b3eb-4e6e-abf9-90a4bca28a6f",
          "name": "1,3-DIOXOLANE [HSDB]",
          "stdName": "1,3-DIOXOLANE [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0bc755a7-5f20-4d0b-9e83-1d0aa5040db6",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        },
        {
          "uuid": "c386bc08-352e-4473-bc1a-eabb42cd0d05",
          "name": "5-CROWN-2",
          "stdName": "5-CROWN-2",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2e078dd3-0159-49cb-80ad-c99e2419cc6e",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        },
        {
          "uuid": "7dd63493-c89b-484c-890c-06b59c8e3ace",
          "name": "DIOXOLANE",
          "stdName": "DIOXOLANE",
          "type": "of",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "cd304708-7f5b-4f82-b569-5a7229936713",
            "ff2a1d77-af50-41f3-bfca-ad0f725a1665",
            "6989deab-fe02-4d7c-8f97-7d4450ccb904",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": true,
          "domains": [
            "cosmetic"
          ],
          "name_orgs": [
            {
              "uuid": "a6b7e729-e27d-4cb4-a35f-51141d7bb8c1",
              "name_org": "INCI"
            }
          ]
        },
        {
          "uuid": "d64d8f7c-4f23-4330-be96-73c434b8afbb",
          "name": "DIOXOLANE, 1,3-",
          "stdName": "DIOXOLANE, 1,3-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "8bbe5d27-77b7-4657-9a52-67ad32d2daa2"
          ],
          "display_name": false
        },
        {
          "uuid": "32f400fd-75f7-4310-8eb9-ebfb539d7488",
          "name": "ELCOTAL DX",
          "stdName": "ELCOTAL DX",
          "type": "bn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "ff2a1d77-af50-41f3-bfca-ad0f725a1665",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        },
        {
          "uuid": "abaf7b33-9192-4e89-822a-5641359a30f6",
          "name": "ETHYLENE GLYCOL FORMAL",
          "stdName": "ETHYLENE GLYCOL FORMAL",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2e078dd3-0159-49cb-80ad-c99e2419cc6e",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        },
        {
          "uuid": "ba878f78-ff52-4e75-96a3-4d5f50e05af3",
          "name": "FORMAL GLYCOL",
          "stdName": "FORMAL GLYCOL",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2e078dd3-0159-49cb-80ad-c99e2419cc6e",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        },
        {
          "uuid": "744b9304-c1bd-44ea-9445-a204b58c2c50",
          "name": "GLYCOLFORMAL",
          "stdName": "GLYCOLFORMAL",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2e078dd3-0159-49cb-80ad-c99e2419cc6e",
            "c6802784-f5cf-4b84-8665-9e1bfcfd0834"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "8bbe5d27-77b7-4657-9a52-67ad32d2daa2",
          "citation": "ICSAS BATCH 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "ff2a1d77-af50-41f3-bfca-ad0f725a1665",
          "citation": "PCPC",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "c6802784-f5cf-4b84-8665-9e1bfcfd0834",
          "citation": "PERSONAL CARE PRODUCTS COUNCIL",
          "doc_type": "PERSONAL CARE PRODUCTS COUNCIL",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "cd304708-7f5b-4f82-b569-5a7229936713",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "2e078dd3-0159-49cb-80ad-c99e2419cc6e",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "0bc755a7-5f20-4d0b-9e83-1d0aa5040db6",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ecafc7d9-1f53-4ede-94cf-57e85df3a4fe",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390881000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ddb7e860-9586-4f30-b682-2a67d65e12c9",
          "citation": "SRS import [Y57RBG19JL]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=Y57RBG19JL",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390881000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "64db659e-7ab1-4efe-a621-5d69ad3ba8e4",
          "citation": "CHEMID 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "6989deab-fe02-4d7c-8f97-7d4450ccb904",
          "citation": "DIOXOLANE [INCI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "0eb237c0-bcfd-40c1-8387-32be4504c33b",
          "citation": "1,3-DIOXOLANE [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "ac9c06b8-89b5-3a7c-3efa-f7a838e86dec",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+646-06-0",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "d40a8e97-6911-6722-7d6e-b0af0f727bf6",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=646-06-0",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "cbbfe3e1-1636-72f6-1438-26512fb99800",
          "citation": "RXNORM",
          "doc_type": "NLM",
          "public_domain": true
        },
        {
          "uuid": "6dcc95c2-e559-4a03-88ac-9da7c999331c",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "d8a932f4-594d-681a-656e-5d799093fa6a",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "b67da756-b69e-1c8d-8256-fe4f6f36fbbc",
          "citation": "DailyMed",
          "doc_type": "DAILYMED",
          "public_domain": true
        },
        {
          "uuid": "bb7cfdf3-3c0f-4b2a-809b-e663e8de6ae0",
          "citation": "SMS",
          "doc_type": "EMA LIST",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "2d66b249-d860-4031-b954-53d27472e378",
          "id": "2d66b249-d860-4031-b954-53d27472e378",
          "molfile": "\n  Marvin  01132102272D          \n\n  5  5  0  0  0  0            999 V2000\n    7.4593   -5.1666    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.0093   -4.4752    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.2154   -4.6847    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    6.1644   -5.5070    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.9280   -5.8123    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  1  5  1  0  0  0  0\n  2  3  1  0  0  0  0\n  3  4  1  0  0  0  0\n  5  4  1  0  0  0  0\nM  END",
          "smiles": "C1COCO1",
          "formula": "C3H6O2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "9e110be5-225d-4a5f-a79f-e1681df216eb"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "74.0787",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "90d77a3c-d9cf-480d-82f7-529f2e4632e7",
      "version": "9",
      "structure": {
        "id": "c3663bc8-e21f-4fd3-83ff-11605227c549",
        "molfile": "\n  Marvin  01132110062D          \n\n  5  5  0  0  0  0            999 V2000\n    7.4588   -5.1663    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.0088   -4.4749    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.2150   -4.6844    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    6.1640   -5.5066    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.9275   -5.8119    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  5  4  1  0  0  0  0\n  1  5  1  0  0  0  0\nM  END",
        "smiles": "C1COCO1",
        "formula": "C3H6O2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "74.0787",
        "optical_activity": "NONE",
        "references": [
          "ddb7e860-9586-4f30-b682-2a67d65e12c9",
          "64db659e-7ab1-4efe-a621-5d69ad3ba8e4"
        ],
        "stereo_centers": 0
      },
      "unii": "Y57RBG19JL"
    }
  ]
}