{
  "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": "3cd331e1-fed1-4025-b888-92e4b8cf80b5",
          "code": "10117-38-1",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=10117-38-1",
          "code_system": "CAS",
          "references": [
            "604ff813-435b-4a12-95ab-30942237a539",
            "10830cd6-c7ef-45d4-a682-a20800705cda"
          ]
        },
        {
          "uuid": "19f132eb-3dbf-4e8b-b0d2-94612d36b542",
          "code": "POTASSIUM SULFITE",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/Potassium_sulfite",
          "code_system": "WIKIPEDIA",
          "references": [
            "604ff813-435b-4a12-95ab-30942237a539"
          ]
        },
        {
          "uuid": "23fee60e-157d-4019-b6cf-cdf8fb149444",
          "code": "INS-225",
          "comments": "Codex Alimentarius|Functional Classification|Antioxidant|Preservative",
          "type": "PRIMARY",
          "url": "http://www.fao.org/gsfaonline/additives/details.html?id=229",
          "code_system": "CODEX ALIMENTARIUS (GSFA)",
          "references": [
            "604ff813-435b-4a12-95ab-30942237a539"
          ]
        },
        {
          "uuid": "c0daab16-c617-4a79-bac3-81a75c4a8d7a",
          "code": "INS-225",
          "comments": "JECFA Evaluation|Functional Classification|ANTIOXIDANT|PRESERVATIVE",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemINS=225",
          "code_system": "JECFA EVALUATION",
          "references": [
            "604ff813-435b-4a12-95ab-30942237a539"
          ]
        },
        {
          "uuid": "62442b47-ba05-48c5-9495-bb3f806c78c0",
          "code": "233-321-1",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.030.279",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "604ff813-435b-4a12-95ab-30942237a539"
          ]
        },
        {
          "uuid": "1b8e430c-de5f-4b2e-a935-18c0da05d54d",
          "code": "m9065",
          "comments": "Merck Index",
          "type": "PRIMARY",
          "url": "https://merckindex.rsc.org/monographs/m9065?q=authorize",
          "code_system": "MERCK INDEX",
          "references": [
            "604ff813-435b-4a12-95ab-30942237a539"
          ]
        },
        {
          "uuid": "6590dd21-a990-40b5-8167-29cf70098247",
          "code": "24958",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/24958",
          "code_system": "PUBCHEM",
          "references": [
            "604ff813-435b-4a12-95ab-30942237a539"
          ]
        },
        {
          "uuid": "8f1b1455-6dde-1a84-5596-3b4cfd986f5b",
          "code": "5052",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/5052",
          "code_system": "HSDB",
          "references": [
            "1fe83e74-3887-fe1b-c247-0f6199356e9d"
          ]
        },
        {
          "uuid": "0b306e89-6654-4532-af4b-d2de7ad1477a",
          "code": "015KZC652E",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "4af0aa0d-53bd-3519-efb8-775bae7a0921",
          "code": "300000031155",
          "type": "PRIMARY",
          "code_system": "SMS_ID",
          "references": [
            "72600c45-dfc4-e2dd-fa3f-96babaf09f5f"
          ]
        },
        {
          "uuid": "eae1d52b-c6a7-8264-d6d9-862ecee6549d",
          "code": "DTXSID80889532",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID80889532",
          "code_system": "EPA CompTox"
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "3d412ec2-580a-41a8-b47a-e70cfe04cb64",
          "name": "DIPOTASSIUM SULFITE",
          "stdName": "DIPOTASSIUM SULFITE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "4ccf0e87-80be-4a4f-b031-e3eebef70265",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        },
        {
          "uuid": "9684225a-505a-41f6-9bf2-8995cc1dd7c9",
          "name": "DIPOTASSIUM SULPHITE",
          "stdName": "DIPOTASSIUM SULPHITE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "265eb71c-cc80-45b0-8744-ab17cde0f038"
          ],
          "display_name": false
        },
        {
          "uuid": "9abf44e1-06ca-47ca-bc9d-9f238e6a003e",
          "name": "E-225",
          "stdName": "E-225",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "db5d16ae-8b90-46a0-85e7-9febbd4c2735",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        },
        {
          "uuid": "c0332436-cdb8-4752-8d9f-ed22ee83e753",
          "name": "E225",
          "stdName": "E225",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "db5d16ae-8b90-46a0-85e7-9febbd4c2735",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        },
        {
          "uuid": "7741d014-07d8-417d-a0c0-f601200cd82b",
          "name": "INS NO.225",
          "stdName": "INS NO.225",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "db5d16ae-8b90-46a0-85e7-9febbd4c2735",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        },
        {
          "uuid": "bb2e8c19-b4c9-441e-80bb-baf1436f0e53",
          "name": "INS-225",
          "stdName": "INS-225",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "db5d16ae-8b90-46a0-85e7-9febbd4c2735",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        },
        {
          "uuid": "58f56e97-ed02-4b1f-a3b7-85c41568b061",
          "name": "POTASSIUM SULFITE",
          "stdName": "POTASSIUM SULFITE",
          "type": "of",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "68bddb9a-9628-4616-beec-73188e2c9530",
            "aa6f01fd-36b8-46fd-8dc6-a5e3e02b016e",
            "38d3ed7c-8e24-4686-a757-46c3d85403a4",
            "f58a2929-cb5d-4b87-af81-35075c1ce5b3",
            "f6fe09c1-869c-4522-9037-5b2f78588cb5",
            "50af3911-adff-4822-89fc-ef6533bfce8a",
            "9e4aab2d-7027-499e-b82a-4ce40a8d7f5b",
            "4010ea09-89c7-44cf-80de-b1e5dac1c248",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80",
            "02100860-2a71-4621-83a0-b13f4e991c34",
            "9cf458ab-a045-4367-a9aa-4e0c011721ae"
          ],
          "display_name": true,
          "domains": [
            "cosmetic"
          ],
          "name_orgs": [
            {
              "uuid": "85d0e856-22b0-4a71-b27b-40d0f0a5b16b",
              "name_org": "INCI"
            }
          ]
        },
        {
          "uuid": "a93da020-8d73-4fd9-96cb-aa7b59fc70f5",
          "name": "POTASSIUM SULFITE [FCC]",
          "stdName": "POTASSIUM SULFITE [FCC]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80",
            "02100860-2a71-4621-83a0-b13f4e991c34"
          ],
          "display_name": false
        },
        {
          "uuid": "7e72ac42-c58e-4678-989f-1a237afb3fd4",
          "name": "POTASSIUM SULFITE [HSDB]",
          "stdName": "POTASSIUM SULFITE [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80",
            "9cf458ab-a045-4367-a9aa-4e0c011721ae"
          ],
          "display_name": false
        },
        {
          "uuid": "370718ec-ea74-40f0-a27c-3caf3a3117f0",
          "name": "POTASSIUM SULFITE [MI]",
          "stdName": "POTASSIUM SULFITE [MI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "aa6f01fd-36b8-46fd-8dc6-a5e3e02b016e",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        },
        {
          "uuid": "6de46d19-4d2e-468c-8741-0f0406573de6",
          "name": "POTASSIUM SULPHITE",
          "stdName": "POTASSIUM SULPHITE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "4ccf0e87-80be-4a4f-b031-e3eebef70265",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        },
        {
          "uuid": "fc9d771f-3fe2-4fe4-a99a-439ba9ffff41",
          "name": "SULFUROUS ACID, DIPOTASSIUM SALT",
          "stdName": "SULFUROUS ACID, DIPOTASSIUM SALT",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "4ccf0e87-80be-4a4f-b031-e3eebef70265",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        },
        {
          "uuid": "1d21cbad-20f2-4633-89b0-e40196d7385c",
          "name": "SULFUROUS ACID, POTASSIUM SALT",
          "stdName": "SULFUROUS ACID, POTASSIUM SALT",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "4ccf0e87-80be-4a4f-b031-e3eebef70265",
            "c6bf79bb-62b4-4864-99d6-8f8780df8e80"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "4010ea09-89c7-44cf-80de-b1e5dac1c248",
          "citation": "ChemID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "68bddb9a-9628-4616-beec-73188e2c9530",
          "citation": "DL",
          "doc_type": "CHEMID",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "4ccf0e87-80be-4a4f-b031-e3eebef70265",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "c6bf79bb-62b4-4864-99d6-8f8780df8e80",
          "citation": "CHEMID",
          "doc_type": "CHEMID",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "db5d16ae-8b90-46a0-85e7-9febbd4c2735",
          "citation": "JECFA",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "265eb71c-cc80-45b0-8744-ab17cde0f038",
          "citation": "FDA-SRS 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "aa6f01fd-36b8-46fd-8dc6-a5e3e02b016e",
          "citation": "MERCK INDEX",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f58a2929-cb5d-4b87-af81-35075c1ce5b3",
          "citation": "PCPC",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "02100860-2a71-4621-83a0-b13f4e991c34",
          "citation": "FCC",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "9cf458ab-a045-4367-a9aa-4e0c011721ae",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "604ff813-435b-4a12-95ab-30942237a539",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390826000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "3f4d2f4c-f930-4009-90ee-efa901b5f20c",
          "citation": "SRS import [015KZC652E]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=015KZC652E",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390826000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "38d3ed7c-8e24-4686-a757-46c3d85403a4",
          "citation": "POTASSIUM SULFITE [MI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "9e4aab2d-7027-499e-b82a-4ce40a8d7f5b",
          "citation": "POTASSIUM SULFITE [INCI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "f6fe09c1-869c-4522-9037-5b2f78588cb5",
          "citation": "POTASSIUM SULFITE [FCC]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "50af3911-adff-4822-89fc-ef6533bfce8a",
          "citation": "POTASSIUM SULFITE [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "1fe83e74-3887-fe1b-c247-0f6199356e9d",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+10117-38-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "72600c45-dfc4-e2dd-fa3f-96babaf09f5f",
          "citation": "EU-SRS",
          "doc_type": "EMA LIST",
          "public_domain": true
        },
        {
          "uuid": "10830cd6-c7ef-45d4-a682-a20800705cda",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "e6ae6fbc-7a55-48b3-88c6-0d7035e6c9a7",
          "id": "e6ae6fbc-7a55-48b3-88c6-0d7035e6c9a7",
          "molfile": "\n  Marvin  01132111562D          \n\n  1  0  0  0  0  0            999 V2000\n    4.2458   -0.4042    0.0000 K   0  3  0  0  0  0  0  0  0  0  0  0\nM  CHG  1   1   1\nM  END",
          "smiles": "[K+]",
          "formula": "K",
          "atropisomerism": "No",
          "charge": 1,
          "count": 2,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 2,
            "units": "MOL RATIO",
            "uuid": "3de04351-0438-43e3-93d5-4fea8080d60e"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "39.0983",
          "optical_activity": "NONE",
          "stereo_centers": 0
        },
        {
          "uuid": "4808f224-0832-4fba-a2e8-d7d7963c72e8",
          "id": "4808f224-0832-4fba-a2e8-d7d7963c72e8",
          "molfile": "\n  Marvin  01132103472D          \n\n  4  3  0  0  0  0            999 V2000\n    1.2125    0.1083    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    1.2167   -0.7167    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    0.6292   -1.3000    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    2.0125   -0.9292    0.0000 O   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  4  2  0  0  0  0\nM  CHG  2   1  -1   3  -1\nM  END",
          "smiles": "O=S([O-])[O-]",
          "formula": "O3S",
          "atropisomerism": "No",
          "charge": -2,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "68c0f408-6300-48f9-815c-d6d9298ac098"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "80.0643",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "14b1da93-d4a5-4e0a-8cad-26fe6ceed8d1",
      "version": "8",
      "structure": {
        "id": "9473fd71-a271-4ee6-ac97-44cf6bc1ff39",
        "molfile": "\n  Marvin  01132107422D          \n\n  6  3  0  0  0  0            999 V2000\n    1.2167   -0.7167    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    1.2125    0.1083    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    0.6292   -1.3000    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    2.0125   -0.9292    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2458   -0.4042    0.0000 K   0  3  0  0  0  0  0  0  0  0  0  0\n    4.2458   -0.4042    0.0000 K   0  3  0  0  0  0  0  0  0  0  0  0\n  1  3  1  0  0  0  0\n  1  4  2  0  0  0  0\n  1  2  1  0  0  0  0\nM  CHG  4   2  -1   3  -1   5   1   6   1\nM  STY  1   1 MUL\nM  SCN  1   1 HT \nM  SAL   1  2   5   6\nM  SPA   1  1   5\nM  SDI   1  4    3.8258   -0.8242    3.8258    0.0158\nM  SDI   1  4    4.6658    0.0158    4.6658   -0.8242\nM  SMT   1 2\nM  END",
        "smiles": "[K+].[K+].O=S([O-])[O-]",
        "formula": "2K.O3S",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "158.2609",
        "optical_activity": "NONE",
        "references": [
          "3f4d2f4c-f930-4009-90ee-efa901b5f20c",
          "4010ea09-89c7-44cf-80de-b1e5dac1c248"
        ],
        "stereo_centers": 0
      },
      "unii": "015KZC652E"
    }
  ]
}