{
  "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": "b5606ddf-e2c8-4189-ac0a-f1d7d910ca67",
          "code": "24545-86-6",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=24545-86-6",
          "code_system": "CAS",
          "references": [
            "352b1eae-07fb-408f-9b21-1a927cf01ab4",
            "ae2c6e81-77b2-4866-ac45-453865ce45ee"
          ]
        },
        {
          "uuid": "93d820e8-b30b-46d3-933d-e4927f96630b",
          "code": "246-308-0",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.042.083",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "352b1eae-07fb-408f-9b21-1a927cf01ab4"
          ]
        },
        {
          "uuid": "6f52fce7-bc57-49af-88b0-c413190bf4ed",
          "code": "90537",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/90537",
          "code_system": "PUBCHEM",
          "references": [
            "352b1eae-07fb-408f-9b21-1a927cf01ab4"
          ]
        },
        {
          "uuid": "e24e809f-e18a-8cd7-3c5b-1732fb5cadba",
          "code": "DTXSID80179288",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID80179288",
          "code_system": "EPA CompTox",
          "references": [
            "19b621d9-26b5-2ccb-a9e7-0f15cb3ab711"
          ]
        },
        {
          "uuid": "8f8286f5-fcc0-4722-bc7d-b7291a4ad118",
          "code": "401599-92-6",
          "type": "ALTERNATIVE",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=401599-92-6",
          "code_system": "CAS",
          "references": [
            "ae2c6e81-77b2-4866-ac45-453865ce45ee"
          ]
        },
        {
          "uuid": "c5bbf278-dbe6-45ad-b1de-d96f0db35e7f",
          "code": "43N83DU7RA",
          "type": "PRIMARY",
          "code_system": "FDA UNII",
          "references": [
            "619f03f9-1874-49f5-88b9-9c5f76782dc0"
          ]
        }
      ],
      "relationships": [
        {
          "uuid": "f5110dc2-54e1-4b35-b3f0-2ce5d3bb7acc",
          "amount": {
            "uuid": "01965915-b6c6-448a-9f3e-acc3f279fedd"
          },
          "type": "SALT/SOLVATE->PARENT",
          "references": [
            "101d45c2-1f9f-48bc-94d1-8e0716be7a68"
          ],
          "related_substance": {
            "uuid": "dc72b576-e0c0-4015-980a-0bf0f50291f8",
            "refuuid": "16328fd7-3546-41e4-a483-b7dc1286dfb0",
            "name": "4',5'-DINITROFLUORESCEIN DISODIUM",
            "unii": "KF7YC7YJ26",
            "linking_id": "KF7YC7YJ26",
            "ref_pname": "4',5'-DINITROFLUORESCEIN DISODIUM",
            "substance_class": "reference"
          }
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "f2311ec4-9730-4783-9543-25d7b59313fd",
          "name": "2-(6-HYDROXY-4,5-DINITRO-3-OXO-3H-XANTHEN-9-YL)BENZOIC ACID",
          "stdName": "2-(6-HYDROXY-4,5-DINITRO-3-OXO-3H-XANTHEN-9-YL)BENZOIC ACID",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "ae2c6e81-77b2-4866-ac45-453865ce45ee"
          ],
          "display_name": false
        },
        {
          "uuid": "cad317ce-dfe9-437c-9761-d2826a3769b9",
          "name": "3',6'-DIHYDROXY-4',5'-DINITROSPIRO(2-BENZOFURAN-3,9'-XANTHENE)-1-ONE",
          "stdName": "3',6'-DIHYDROXY-4',5'-DINITROSPIRO(2-BENZOFURAN-3,9'-XANTHENE)-1-ONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "4d347e9d-769b-4b5f-889d-c18e57413606"
          ],
          "display_name": false
        },
        {
          "uuid": "f56782d0-7d41-4369-8ace-8ec3307725a9",
          "name": "3',6'-DIHYDROXY-4',5'-DINITROSPIRO(ISOBENZOFURAN-1(3H),9'-(9H)XAN-THEN)-3-ONE",
          "stdName": "3',6'-DIHYDROXY-4',5'-DINITROSPIRO(ISOBENZOFURAN-1(3H),9'-(9H)XAN-THEN)-3-ONE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "619f03f9-1874-49f5-88b9-9c5f76782dc0"
          ],
          "display_name": false
        },
        {
          "uuid": "86163034-b04f-4fd8-925a-adb5dc35a095",
          "name": "3',6'-DIHYDROXY-4',5'-DINITROSPIRO(ISOBENZOFURAN-1(3H),9'-(9H)XANTHENE)-3-ONE",
          "stdName": "3',6'-DIHYDROXY-4',5'-DINITROSPIRO(ISOBENZOFURAN-1(3H),9'-(9H)XANTHENE)-3-ONE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "451057d4-6738-401d-a97d-5f6ce43c34f3"
          ],
          "display_name": false
        },
        {
          "uuid": "12a571d8-70cf-4093-93f2-55641efb0572",
          "name": "4',5'-DINITROFLUORESCEIN",
          "stdName": "4',5'-DINITROFLUORESCEIN",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "4d347e9d-769b-4b5f-889d-c18e57413606",
            "80920857-dc0c-4842-a723-a41e6d6cd6ba"
          ],
          "display_name": true
        },
        {
          "uuid": "0fa36b17-a813-4996-a5f8-6edd90687c7a",
          "name": "BENZOIC ACID, 2-(6-HYDROXY-4,5-DINITRO-3-OXO-3H-XANTHEN-9-YL)-",
          "stdName": "BENZOIC ACID, 2-(6-HYDROXY-4,5-DINITRO-3-OXO-3H-XANTHEN-9-YL)-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "ae2c6e81-77b2-4866-ac45-453865ce45ee"
          ],
          "display_name": false
        },
        {
          "uuid": "621218e7-31c7-457f-9bf8-efa6ce2dcae3",
          "name": "SOLVENT ORANGE 16",
          "stdName": "SOLVENT ORANGE 16",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "619f03f9-1874-49f5-88b9-9c5f76782dc0"
          ],
          "display_name": false
        },
        {
          "uuid": "6e2b43d8-b5ca-4bcb-9b0d-a6258df8036b",
          "name": "SPIRO(ISOBENZOFURAN-1(3H),9'-(9H)XANTHEN)-3-ONE, 3',6'-DIHYDROXY-4',5'-DINITRO-",
          "stdName": "SPIRO(ISOBENZOFURAN-1(3H),9'-(9H)XANTHEN)-3-ONE, 3',6'-DIHYDROXY-4',5'-DINITRO-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "619f03f9-1874-49f5-88b9-9c5f76782dc0",
            "ae2c6e81-77b2-4866-ac45-453865ce45ee"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "451057d4-6738-401d-a97d-5f6ce43c34f3",
          "citation": "CFSAN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "352b1eae-07fb-408f-9b21-1a927cf01ab4",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493392629000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "80920857-dc0c-4842-a723-a41e6d6cd6ba",
          "citation": "CHEMICAL BOOK",
          "url": "https://www.chemicalbook.com/ChemicalProductProperty_EN_CB3439100.htm",
          "doc_type": "WEB PAGE",
          "public_domain": true,
          "tags": [
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "4d347e9d-769b-4b5f-889d-c18e57413606",
          "citation": "PUBCHEM",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/90537",
          "doc_type": "PUBCHEM",
          "public_domain": true,
          "tags": [
            "PUBLIC_DOMAIN_RELEASE",
            "NOMEN"
          ]
        },
        {
          "uuid": "19b621d9-26b5-2ccb-a9e7-0f15cb3ab711",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=24545-86-6",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "619f03f9-1874-49f5-88b9-9c5f76782dc0",
          "citation": "CHEMID",
          "doc_type": "CHEMID",
          "public_domain": true,
          "tags": [
            "PUBLIC_DOMAIN_RELEASE",
            "NOMEN"
          ]
        },
        {
          "uuid": "101d45c2-1f9f-48bc-94d1-8e0716be7a68",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "ae2c6e81-77b2-4866-ac45-453865ce45ee",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "d052e2ab-e570-42f2-9c55-2802f7884f6d",
          "id": "d052e2ab-e570-42f2-9c55-2802f7884f6d",
          "molfile": "\n  Marvin  01132110462D          \n\n 31 35  0  0  0  0            999 V2000\n    0.4731   -5.0133    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.9000   -4.3267    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.5192   -3.5883    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.9461   -2.9018    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.7711   -2.9307    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1576   -3.6633    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.0172   -3.6691    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    3.4326   -2.9710    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.0287   -2.2441    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.4441   -1.5461    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2691   -1.5519    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.6671   -2.2787    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.4979   -2.2845    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2575   -2.9768    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.6556   -3.6980    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0\n    5.4806   -3.7037    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    4.2460   -4.3960    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1980   -2.2384    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.6768   -1.5750    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1922   -0.8076    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.4403    0.0000    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    1.4134   -1.1596    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7038   -0.7442    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -1.1596    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -1.9903    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7038   -2.4057    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.4134   -1.9903    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.7250   -4.3499    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1115   -5.0825    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0\n    1.6788   -5.7690    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    2.9364   -5.1056    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 28  2  2  0  0  0  0\n  4  3  2  0  0  0  0\n  5  4  1  0  0  0  0\n  5  6  2  0  0  0  0\n 18  5  1  0  0  0  0\n  6  7  1  0  0  0  0\n  6 28  1  0  0  0  0\n  8  7  1  0  0  0  0\n  9  8  1  0  0  0  0\n  8 14  2  0  0  0  0\n  9 10  2  0  0  0  0\n 18  9  1  0  0  0  0\n 10 11  1  0  0  0  0\n 12 11  2  0  0  0  0\n 12 13  1  0  0  0  0\n 14 12  1  0  0  0  0\n 14 15  1  0  0  0  0\n 15 16  1  0  0  0  0\n 15 17  2  0  0  0  0\n 18 19  1  0  0  0  0\n 18 27  1  0  0  0  0\n 19 20  1  0  0  0  0\n 20 21  2  0  0  0  0\n 20 22  1  0  0  0  0\n 22 23  1  0  0  0  0\n 27 22  2  0  0  0  0\n 23 24  2  0  0  0  0\n 25 24  1  0  0  0  0\n 26 25  2  0  0  0  0\n 27 26  1  0  0  0  0\n 28 29  1  0  0  0  0\n 29 30  1  0  0  0  0\n 29 31  2  0  0  0  0\nM  CHG  4  15   1  16  -1  29   1  30  -1\nM  END",
          "smiles": "c1ccc2c(c1)C(=O)OC23c4ccc(c(c4Oc5c3ccc(c5[N+](=O)[O-])O)[N+](=O)[O-])O",
          "formula": "C20H10N2O9",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "150f9e64-e889-4ecc-ac0a-cb03b7f709d0"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "422.3022",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "d09556ed-97fa-4028-b9bb-a399f9ab9a6b",
      "version": "8",
      "structure": {
        "id": "5f03d96a-3896-4cef-aeed-a5cdcb79a9d8",
        "molfile": "\n  Marvin  01132104552D          \n\n 31 35  0  0  0  0            999 V2000\n    2.1980   -2.2384    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.7711   -2.9307    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.0287   -2.2441    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1576   -3.6633    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.4326   -2.9710    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.6768   -1.5750    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2575   -2.9768    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.7250   -4.3499    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.0172   -3.6691    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    4.6556   -3.6980    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0\n    2.1115   -5.0825    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0\n    1.4134   -1.9903    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.1922   -0.8076    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.4134   -1.1596    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.9461   -2.9018    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.4441   -1.5461    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.9000   -4.3267    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.6671   -2.2787    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.6788   -5.7690    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    2.9364   -5.1056    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.4806   -3.7037    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    4.2460   -4.3960    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    2.4403    0.0000    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.5192   -3.5883    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.2691   -1.5519    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7038   -2.4057    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.4731   -5.0133    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.4979   -2.2845    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.7038   -0.7442    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -1.9903    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.0000   -1.1596    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  1  3  1  0  0  0  0\n  1  6  1  0  0  0  0\n  1 12  1  0  0  0  0\n  2  4  1  0  0  0  0\n  2 15  2  0  0  0  0\n  3  5  2  0  0  0  0\n  3 16  1  0  0  0  0\n  4  8  2  0  0  0  0\n  4  9  1  0  0  0  0\n  5  7  1  0  0  0  0\n  5  9  1  0  0  0  0\n  6 13  1  0  0  0  0\n  7 10  1  0  0  0  0\n  7 18  2  0  0  0  0\n  8 11  1  0  0  0  0\n  8 17  1  0  0  0  0\n 10 21  1  0  0  0  0\n 10 22  2  0  0  0  0\n 11 19  1  0  0  0  0\n 11 20  2  0  0  0  0\n 12 14  1  0  0  0  0\n 12 26  2  0  0  0  0\n 13 23  2  0  0  0  0\n 13 14  1  0  0  0  0\n 14 29  2  0  0  0  0\n 15 24  1  0  0  0  0\n 16 25  2  0  0  0  0\n 17 24  2  0  0  0  0\n 17 27  1  0  0  0  0\n 18 25  1  0  0  0  0\n 18 28  1  0  0  0  0\n 26 30  1  0  0  0  0\n 29 31  1  0  0  0  0\n 30 31  2  0  0  0  0\nM  CHG  4  10   1  11   1  19  -1  21  -1\nM  END",
        "smiles": "c1ccc2c(c1)C(=O)OC23c4ccc(c(c4Oc5c3ccc(c5[N+](=O)[O-])O)[N+](=O)[O-])O",
        "formula": "C20H10N2O9",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "422.3022",
        "optical_activity": "NONE",
        "references": [
          "451057d4-6738-401d-a97d-5f6ce43c34f3"
        ],
        "stereo_centers": 0
      },
      "unii": "43N83DU7RA"
    }
  ]
}