{
  "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": "47954c24-eed5-46b6-ba30-102c0f55c954",
          "code": "1317-39-1",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=1317-39-1",
          "code_system": "CAS",
          "references": [
            "372b2717-1d4c-4d5e-a64e-22d3e441f638",
            "6c06210d-90a5-4b8c-900d-eb07e70ff1b2"
          ]
        },
        {
          "uuid": "8dd9771c-85e1-4a9b-8c24-a4bd3ca911b1",
          "code": "C000520",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67000520",
          "code_system": "MESH",
          "references": [
            "372b2717-1d4c-4d5e-a64e-22d3e441f638"
          ]
        },
        {
          "uuid": "a00fcf0d-1867-470c-807f-04d4be23588e",
          "code": "COPPER(I) OXIDE",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/Copper(I)_oxide",
          "code_system": "WIKIPEDIA",
          "references": [
            "372b2717-1d4c-4d5e-a64e-22d3e441f638"
          ]
        },
        {
          "uuid": "d8b25049-9c4e-4773-a65a-2717adee5c14",
          "code": "25601",
          "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:1951",
          "code_system": "EPA PESTICIDE CODE",
          "references": [
            "372b2717-1d4c-4d5e-a64e-22d3e441f638"
          ]
        },
        {
          "uuid": "74f23854-80af-4a94-96ad-63499fa06b01",
          "code": "215-270-7",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.013.883",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "372b2717-1d4c-4d5e-a64e-22d3e441f638"
          ]
        },
        {
          "uuid": "d36b42e9-dbe8-4078-8a8f-a57a11b66447",
          "code": "21842",
          "comments": "RxNorm",
          "type": "PRIMARY",
          "url": "https://rxnav.nlm.nih.gov/REST/rxcui/21842/allProperties.xml?prop=all",
          "code_system": "RXCUI",
          "references": [
            "372b2717-1d4c-4d5e-a64e-22d3e441f638"
          ]
        },
        {
          "uuid": "2d924b14-2159-47b2-9fcc-bc8d75938884",
          "code": "m3924",
          "comments": "Merck Index",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m3924?q=authorize",
          "code_system": "MERCK INDEX",
          "references": [
            "372b2717-1d4c-4d5e-a64e-22d3e441f638"
          ]
        },
        {
          "uuid": "bac77b2c-87fd-43ad-a138-888fa1d09c81",
          "code": "10313194",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/10313194",
          "code_system": "PUBCHEM",
          "references": [
            "372b2717-1d4c-4d5e-a64e-22d3e441f638"
          ]
        },
        {
          "uuid": "14f714d6-da9f-c36b-2211-94d3f46b1194",
          "code": "1549",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/1549",
          "code_system": "HSDB",
          "references": [
            "998d1d74-464a-0c4f-fc80-642a1b9a6afe"
          ]
        },
        {
          "uuid": "f1654f8f-a4e4-7a09-54ff-c64f65f38c96",
          "code": "DTXSID0034489",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID0034489",
          "code_system": "EPA CompTox",
          "references": [
            "f87138cd-3f9c-4fdb-dab4-b63cc2ec4599"
          ]
        },
        {
          "uuid": "b7070e34-4542-4aa1-a843-b3dd2c39191c",
          "code": "T8BEA5064F",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "39d6c3b2-1e3b-a04c-d76f-0fe77b14fa2d",
          "code": "83538",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=83538",
          "code_system": "NSC",
          "references": [
            "f0d400d4-ae00-a867-cfa1-127ca60854cd"
          ]
        },
        {
          "uuid": "19cb41a5-66f2-a13e-4996-3dceb1e22a59",
          "code": "T8BEA5064F",
          "type": "PRIMARY",
          "url": "https://dailymed.nlm.nih.gov/dailymed/search.cfm?adv=1&query=T8BEA5064F",
          "code_system": "DAILYMED",
          "references": [
            "37a166df-26b4-ff0c-70ee-e93bc2af01f0"
          ]
        },
        {
          "uuid": "db805142-a6f7-c5d7-b642-a3d0fe88295b",
          "code": "cuprous oxide",
          "type": "PRIMARY",
          "url": "https://pesticidecompendium.bcpc.org/cuprous oxide.html",
          "code_system": "ALANWOOD",
          "references": [
            "0cb87f76-e409-fe29-7734-4471d625b03c"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "17a9199f-5490-4905-84dd-7384ae53c21c",
          "name": "C.I. 77402",
          "stdName": "C.I. 77402",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00",
            "b7a4bb59-68d1-4986-a8cc-540108454cc0"
          ],
          "display_name": false
        },
        {
          "uuid": "b133391f-4a90-4724-9f38-51df2ca756cf",
          "name": "COPPER (I) OXIDE [HSDB]",
          "stdName": "COPPER (I) OXIDE [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00",
            "7644d3f9-f0b9-4427-8cfa-882056752e0e"
          ],
          "display_name": false
        },
        {
          "uuid": "cb0a851f-ae98-469b-9eaf-08fc8407574c",
          "name": "COPPER OXIDE (CU(SUB 2)O)",
          "stdName": "COPPER OXIDE (CU(SUB 2)O)",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "b95c29f9-73b6-4056-999e-358e262e19f7",
            "48dab146-acd8-4d1c-88e9-9f4e73edd935"
          ],
          "display_name": false
        },
        {
          "uuid": "c98ad19f-1986-428b-b439-a31cb94c8cf0",
          "name": "COPPER(I) OXIDE",
          "stdName": "COPPER(I) OXIDE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "b8d57ec8-f6a8-4a86-9083-42f59d73f474",
            "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00"
          ],
          "display_name": false
        },
        {
          "uuid": "0f95dad4-e0d3-4d69-9024-ed5c96328c33",
          "name": "CUPROUS OXIDE",
          "stdName": "CUPROUS OXIDE",
          "type": "of",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "54347544-c755-40c7-8dfd-5b5beebde148",
            "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00",
            "2650e055-ccee-4105-accd-b7210c2a5231",
            "1d9f221c-ffaf-47d8-926c-6102af6d1e6e",
            "f56b2ed6-7f08-4c4e-8557-0208e5057d67",
            "b7a4bb59-68d1-4986-a8cc-540108454cc0",
            "19a1f870-5db2-4166-aebd-7bfb18bed651",
            "411f8ef4-7cf2-4b63-b735-9777f3880866"
          ],
          "display_name": true,
          "domains": [
            "cosmetic"
          ],
          "name_orgs": [
            {
              "uuid": "9fd3e863-a7fc-4570-9389-4de063a82f54",
              "name_org": "INCI"
            }
          ]
        },
        {
          "uuid": "2f4e6a5d-2e13-4638-9248-52092b06688f",
          "name": "CUPROUS OXIDE [ISO]",
          "stdName": "CUPROUS OXIDE [ISO]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "54347544-c755-40c7-8dfd-5b5beebde148",
            "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00"
          ],
          "display_name": false
        },
        {
          "uuid": "0f6e36bd-9be2-4e61-9557-02a721861538",
          "name": "CUPROUS OXIDE [MI]",
          "stdName": "CUPROUS OXIDE [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00",
            "2650e055-ccee-4105-accd-b7210c2a5231"
          ],
          "display_name": false
        },
        {
          "uuid": "a4b45715-41e0-4bff-bbc6-4e3a1f5ebe87",
          "name": "NSC-83538",
          "stdName": "NSC-83538",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00",
            "d2e5764e-d3bd-46d4-8e29-cd018a757afa"
          ],
          "display_name": false
        },
        {
          "uuid": "17f086df-391c-47b9-901a-01bb351ef248",
          "name": "RED COPPER OXIDE",
          "stdName": "RED COPPER OXIDE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00",
            "b7a4bb59-68d1-4986-a8cc-540108454cc0"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "b7a4bb59-68d1-4986-a8cc-540108454cc0",
          "citation": "MERCK",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "14a0d3ce-2e91-4b3c-adf6-86b913b4cd00",
          "citation": "MERCK INDEX",
          "doc_type": "MERCK INDEX",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "b8d57ec8-f6a8-4a86-9083-42f59d73f474",
          "citation": "WIKIPEDIA",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "48dab146-acd8-4d1c-88e9-9f4e73edd935",
          "citation": "ALANWOOD.NET",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "b95c29f9-73b6-4056-999e-358e262e19f7",
          "citation": "ALANWOOD CAS",
          "doc_type": "WEB PAGE",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "2650e055-ccee-4105-accd-b7210c2a5231",
          "citation": "MERCK INDEX",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7644d3f9-f0b9-4427-8cfa-882056752e0e",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "19a1f870-5db2-4166-aebd-7bfb18bed651",
          "citation": "PCPC",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "54347544-c755-40c7-8dfd-5b5beebde148",
          "citation": "ISO",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "d2e5764e-d3bd-46d4-8e29-cd018a757afa",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "372b2717-1d4c-4d5e-a64e-22d3e441f638",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390836000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "a74da0e0-ec9a-4d08-bcbc-e0bbb40aca79",
          "citation": "SRS import [T8BEA5064F]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=T8BEA5064F",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390836000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "04e015c7-1048-4b4c-8029-ccfd3f312a78",
          "citation": "Merck 14.3",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "1d9f221c-ffaf-47d8-926c-6102af6d1e6e",
          "citation": "CUPROUS OXIDE [MI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "f56b2ed6-7f08-4c4e-8557-0208e5057d67",
          "citation": "CUPROUS OXIDE [INCI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "411f8ef4-7cf2-4b63-b735-9777f3880866",
          "citation": "CUPROUS OXIDE [ISO]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "998d1d74-464a-0c4f-fc80-642a1b9a6afe",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+1317-39-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "f87138cd-3f9c-4fdb-dab4-b63cc2ec4599",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=1317-39-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "0cb87f76-e409-fe29-7734-4471d625b03c",
          "citation": "AW",
          "doc_type": "ALANWOOD",
          "public_domain": true
        },
        {
          "uuid": "37a166df-26b4-ff0c-70ee-e93bc2af01f0",
          "citation": "DailyMed",
          "doc_type": "DAILYMED",
          "public_domain": true
        },
        {
          "uuid": "f0d400d4-ae00-a867-cfa1-127ca60854cd",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "6c06210d-90a5-4b8c-900d-eb07e70ff1b2",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "c8646f47-312d-4c94-aa37-6911ba2e3a0c",
          "id": "c8646f47-312d-4c94-aa37-6911ba2e3a0c",
          "molfile": "\n  Marvin  01132110212D          \n\n  1  0  0  0  0  0            999 V2000\n    3.7792   -0.2500    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\nM  CHG  1   1  -1\nM  END",
          "smiles": "[OH-]",
          "formula": "HO",
          "atropisomerism": "No",
          "charge": -1,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "d1b31eeb-5471-4697-bf36-497060f016bd"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "17.0073",
          "optical_activity": "NONE",
          "stereo_centers": 0
        },
        {
          "uuid": "9452525e-b4c5-4d86-b801-361a1e423b04",
          "id": "9452525e-b4c5-4d86-b801-361a1e423b04",
          "molfile": "\n  Marvin  01132107422D          \n\n  1  0  0  0  0  0            999 V2000\n    1.2167   -0.2792    0.0000 Cu  0  3  0  0  0  0  0  0  0  0  0  0\nM  CHG  1   1   1\nM  END",
          "smiles": "[Cu+]",
          "formula": "Cu",
          "atropisomerism": "No",
          "charge": 1,
          "count": 2,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 2,
            "units": "MOL RATIO",
            "uuid": "0d3732bb-7986-4b13-80f6-c4e57666c2d8"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "63.5456",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "980e5281-9a82-43ee-aebd-c751e76a8958",
      "version": "8",
      "structure": {
        "id": "08a3bfe3-3bf6-41b5-89d8-cb625217068a",
        "molfile": "\n  Marvin  01132100432D          \n\n  3  0  0  0  0  0            999 V2000\n    1.2167   -0.2792    0.0000 Cu  0  3  0  0  0  0  0  0  0  0  0  0\n    3.7792   -0.2500    0.0000 O   0  6  0  0  0  0  0  0  0  0  0  0\n    1.2167   -0.2792    0.0000 Cu  0  3  0  0  0  0  0  0  0  0  0  0\nM  CHG  3   1   1   2  -2   3   1\nM  STY  1   1 MUL\nM  SCN  1   1 HT \nM  SAL   1  2   1   3\nM  SPA   1  1   1\nM  SDI   1  4    0.7967   -0.6992    0.7967    0.1408\nM  SDI   1  4    1.6367    0.1408    1.6367   -0.6992\nM  SMT   1 2\nM  END",
        "smiles": "[Cu+].[Cu+].[O-2]",
        "formula": "2Cu.O",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "143.0907",
        "optical_activity": "NONE",
        "references": [
          "04e015c7-1048-4b4c-8029-ccfd3f312a78",
          "a74da0e0-ec9a-4d08-bcbc-e0bbb40aca79"
        ],
        "stereo_centers": 0
      },
      "unii": "T8BEA5064F"
    }
  ]
}