{
  "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": "c9d731f4-14c7-495e-bc94-a4d6d5995f40",
          "code": "1003-04-9",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=1003-04-9",
          "code_system": "CAS",
          "references": [
            "2990c036-19c5-4c4b-911f-ef088fa7c811",
            "0f70f4a2-bc53-4037-a2e9-6edc7ea0ad56"
          ]
        },
        {
          "uuid": "d8755982-cc0e-4dde-8d34-3d8a2fbd1e8a",
          "code": "213-698-9",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.012.453",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "2990c036-19c5-4c4b-911f-ef088fa7c811"
          ]
        },
        {
          "uuid": "3603c9ce-2cbc-44e2-b6d5-601e6eebebec",
          "code": "61252",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/61252",
          "code_system": "PUBCHEM",
          "references": [
            "2990c036-19c5-4c4b-911f-ef088fa7c811"
          ]
        },
        {
          "uuid": "0a3d5d0a-883c-ef03-3e9a-857f342b791d",
          "code": "DTXSID9061388",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID9061388",
          "code_system": "EPA CompTox",
          "references": [
            "eca70e2a-9fe2-b45e-4b27-4fa8236c7bfa"
          ]
        },
        {
          "uuid": "26917513-1975-4245-bdbe-5647b6af5858",
          "code": "0E9MKH53DV",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "2f9cd332-bc85-9900-f63f-2bf06c92a956",
          "code": "241151",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=241151",
          "code_system": "NSC",
          "references": [
            "99d350c0-ee20-b906-712f-a287b59f693d"
          ]
        },
        {
          "uuid": "020cfb9d-9cf9-7aed-4776-a9e23100e4e1",
          "code": "117",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/117/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "56974e47-0ec8-752a-0593-a77fc415a314"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "e8109e14-53f5-49e7-923d-9d10e334ab82",
          "name": "3(2H)-THIOPHENONE, DIHYDRO-",
          "stdName": "3(2H)-THIOPHENONE, DIHYDRO-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "74c6780b-1146-46ae-93f0-dff779e110c4",
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e"
          ],
          "display_name": false
        },
        {
          "uuid": "2cfa3e9d-1bc5-46eb-8fcd-ca2b1a4ea3f4",
          "name": "3-OXO-2,3,4,5-TETRAHYDROTHIOPHENE",
          "stdName": "3-OXO-2,3,4,5-TETRAHYDROTHIOPHENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
            "7b659f67-6375-4743-b53c-53ae20812935"
          ],
          "display_name": false
        },
        {
          "uuid": "80a4a72b-46d3-4617-b09e-c02a31de6f09",
          "name": "3-OXOTETRAHYDROTHIOPHENE",
          "stdName": "3-OXOTETRAHYDROTHIOPHENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
            "7b659f67-6375-4743-b53c-53ae20812935"
          ],
          "display_name": false
        },
        {
          "uuid": "107c85d7-9401-4cb0-b709-fe6d3adbd029",
          "name": "3-THIACYCLOPENTANONE",
          "stdName": "3-THIACYCLOPENTANONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
            "7b659f67-6375-4743-b53c-53ae20812935"
          ],
          "display_name": false
        },
        {
          "uuid": "2a663ba2-e309-4d6e-92da-041f4e37a029",
          "name": "3-THIOPHANONE",
          "stdName": "3-THIOPHANONE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
            "7b659f67-6375-4743-b53c-53ae20812935"
          ],
          "display_name": false
        },
        {
          "uuid": "576c1d55-632c-498c-a4e4-4a66b40bbe2f",
          "name": "4,5-DIHYDRO-3(2H)THIOPHENONE",
          "stdName": "4,5-DIHYDRO-3(2H)THIOPHENONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "74c6780b-1146-46ae-93f0-dff779e110c4",
            "777a54f4-4990-43da-af34-1fa96273f8f0",
            "4ea796ec-a5f3-4066-9e3f-58270b6eec64",
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e"
          ],
          "display_name": false
        },
        {
          "uuid": "2bf7562e-f5d2-4525-ba58-a9695f2261e1",
          "name": "4,5-DIHYDRO-3(2H)THIOPHENONE [FHFI]",
          "stdName": "4,5-DIHYDRO-3(2H)THIOPHENONE [FHFI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "777a54f4-4990-43da-af34-1fa96273f8f0",
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e"
          ],
          "display_name": false
        },
        {
          "uuid": "39c1484c-a2ad-4202-b7b4-6cb3c85bce61",
          "name": "DIHYDRO-3(2H)-THIOPHENONE",
          "stdName": "DIHYDRO-3(2H)-THIOPHENONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "74c6780b-1146-46ae-93f0-dff779e110c4",
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e"
          ],
          "display_name": true
        },
        {
          "uuid": "80fda548-bf99-4b86-983a-cdbc53aeb437",
          "name": "DIHYDRO-3(2H)THIOPHENONE, 4,5-",
          "stdName": "DIHYDRO-3(2H)THIOPHENONE, 4,5-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7cddb817-2e66-4fbe-ad2f-8543f2180f52"
          ],
          "display_name": false
        },
        {
          "uuid": "2b2c7c59-4712-41f1-b992-5ec5e3f09845",
          "name": "DIHYDROTHIOPHEN-3(2H)-ONE",
          "stdName": "DIHYDROTHIOPHEN-3(2H)-ONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "74c6780b-1146-46ae-93f0-dff779e110c4",
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e"
          ],
          "display_name": false
        },
        {
          "uuid": "ec4cc089-3094-4213-b084-b4e056425cfd",
          "name": "FEMA NO. 3266",
          "stdName": "FEMA NO. 3266",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "346c3d60-ee15-487f-b1f4-5ad31648093b"
          ],
          "display_name": false
        },
        {
          "uuid": "e29bae6c-1568-46a4-a35b-3c9e88452e05",
          "name": "NSC-241151",
          "stdName": "NSC-241151",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
            "7b659f67-6375-4743-b53c-53ae20812935"
          ],
          "display_name": false
        },
        {
          "uuid": "318fd760-6931-4a71-a6ad-7afa0de6121a",
          "name": "TETRAHYDROTHIEN-3-ONE",
          "stdName": "TETRAHYDROTHIEN-3-ONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
            "7b659f67-6375-4743-b53c-53ae20812935"
          ],
          "display_name": false
        },
        {
          "uuid": "cd9165fb-aa15-4a8a-8655-59f61c5a5ed0",
          "name": "TETRAHYDROTHIOPHEN-3-ONE",
          "stdName": "TETRAHYDROTHIOPHEN-3-ONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
            "7b659f67-6375-4743-b53c-53ae20812935"
          ],
          "display_name": false
        },
        {
          "uuid": "b9426068-9510-4b09-8d40-039b7169666f",
          "name": "THIOLAN-3-ONE",
          "stdName": "THIOLAN-3-ONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
            "7b659f67-6375-4743-b53c-53ae20812935"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "7cddb817-2e66-4fbe-ad2f-8543f2180f52",
          "citation": "ICSAS BATCH 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "346c3d60-ee15-487f-b1f4-5ad31648093b",
          "citation": "CHEMID 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7b659f67-6375-4743-b53c-53ae20812935",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7bb0a1c4-81cf-4f27-8b28-f65b4c9e126e",
          "citation": "STN (SCIFINDER)",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "74c6780b-1146-46ae-93f0-dff779e110c4",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "777a54f4-4990-43da-af34-1fa96273f8f0",
          "citation": "FHFI",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "2990c036-19c5-4c4b-911f-ef088fa7c811",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390963000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7b19c546-2a5a-4ae0-9cb3-a78d57001e93",
          "citation": "SRS import [0E9MKH53DV]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=0E9MKH53DV",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390963000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "4ea796ec-a5f3-4066-9e3f-58270b6eec64",
          "citation": "4,5-DIHYDRO-3(2H)THIOPHENONE [FHFI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "eca70e2a-9fe2-b45e-4b27-4fa8236c7bfa",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=1003-04-9",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "0f70f4a2-bc53-4037-a2e9-6edc7ea0ad56",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "99d350c0-ee20-b906-712f-a287b59f693d",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "56974e47-0ec8-752a-0593-a77fc415a314",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "a612f041-7f95-4711-9c43-9b59664adeeb",
          "id": "a612f041-7f95-4711-9c43-9b59664adeeb",
          "molfile": "\n  Marvin  01132108382D          \n\n  6  6  0  0  0  0            999 V2000\n    7.6147   -4.1922    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.1289   -4.8625    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.3039   -4.8625    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.0507   -5.6467    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.7164   -6.1325    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3868   -5.6467    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  2  0  0  0  0\n  3  2  1  0  0  0  0\n  2  6  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\nM  END",
          "smiles": "C1CSCC1=O",
          "formula": "C4H6OS",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "08dbc094-30ce-4a55-85b3-2e33072c35c7"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "102.1561",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "b6a2b1ca-2456-4147-ad30-4eb75bf34772",
      "version": "6",
      "structure": {
        "id": "19abf2be-0b51-413b-bd2c-50e6cbdeed40",
        "molfile": "\n  Marvin  01132101312D          \n\n  6  6  0  0  0  0            999 V2000\n    6.3039   -4.8625    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.1289   -4.8625    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3868   -5.6467    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.7164   -6.1325    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    6.0507   -5.6467    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.6147   -4.1922    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  4  5  1  0  0  0  0\n  5  1  1  0  0  0  0\n  2  6  2  0  0  0  0\nM  END",
        "smiles": "C1CSCC1=O",
        "formula": "C4H6OS",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "102.1561",
        "optical_activity": "NONE",
        "references": [
          "346c3d60-ee15-487f-b1f4-5ad31648093b",
          "7b19c546-2a5a-4ae0-9cb3-a78d57001e93"
        ],
        "stereo_centers": 0
      },
      "unii": "0E9MKH53DV"
    }
  ]
}