{
  "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": "d24d178c-fe91-4c3b-a890-6490dcf233ef",
          "code": "59820-43-8",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=59820-43-8",
          "code_system": "CAS",
          "references": [
            "0a35aea4-5220-4442-97cd-f6b12169d1f0",
            "eb8538e0-e5ca-4518-a9af-5481c989f76c"
          ]
        },
        {
          "uuid": "c7b5fbdb-2324-42f8-aa50-740c33602c74",
          "code": "C99768",
          "type": "PRIMARY",
          "url": "https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C99768",
          "code_system": "NCI_THESAURUS",
          "references": [
            "0a35aea4-5220-4442-97cd-f6b12169d1f0"
          ]
        },
        {
          "uuid": "bed72808-e29d-434e-a9a9-ca6d2da2d841",
          "code": "62158",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/62158",
          "code_system": "PUBCHEM",
          "references": [
            "0a35aea4-5220-4442-97cd-f6b12169d1f0"
          ]
        },
        {
          "uuid": "1f814089-98d0-ef9d-7016-e56e1a09db3a",
          "code": "59820-43-8",
          "type": "PRIMARY",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+59820-43-8",
          "code_system": "HSDB",
          "references": [
            "5f9289ef-4c98-6e1b-526b-a07cafb64278"
          ]
        },
        {
          "uuid": "8fe36a33-1bce-ed3a-699a-e74cf132f29f",
          "code": "DTXSID6021458",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID6021458",
          "code_system": "EPA CompTox",
          "references": [
            "11f2171a-2aa3-256e-386b-462faefadfd6"
          ]
        },
        {
          "uuid": "91299297-e5a4-52d3-7a19-db95dc0e84ab",
          "code": "C461",
          "comments": "Industrial Aid[C45678]|Dye",
          "type": "CONCEPT",
          "url": "https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C461",
          "code_system": "NCI_THESAURUS",
          "references": [
            "ed6e61de-0af2-6b47-6016-0645b48db198"
          ]
        },
        {
          "uuid": "57b255e1-f05f-cfe8-b9dd-977b65eafd5f",
          "code": "2179013",
          "type": "PRIMARY",
          "url": "https://rxnav.nlm.nih.gov/REST/rxcui/2179013/allProperties.xml?prop=all",
          "code_system": "RXCUI",
          "references": [
            "41a3c8a3-8062-0040-e5e0-a68130b83679"
          ]
        },
        {
          "uuid": "5ab0b1d2-1e09-454c-aef9-5fb5d08b0faf",
          "code": "0N97D5G157",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "df18c130-e7ea-4343-908d-d2e80e0f0323",
          "name": "2-(3-NITRO-6-(.BETA.-HYDROXYETHYLAMINO)PHENOXY)ETHANOL",
          "stdName": "2-(3-NITRO-6-(.BETA.-HYDROXYETHYLAMINO)PHENOXY)ETHANOL",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "37041afd-1950-43ab-8680-84b4d29b7685",
            "cb7432c5-9799-484e-8650-dfcf38dd33e7"
          ],
          "display_name": false
        },
        {
          "uuid": "25f96ce0-8932-4f11-907a-588138463a05",
          "name": "COLOREX HCY4",
          "stdName": "COLOREX HCY4",
          "type": "bn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af5a8988-99dc-4b7c-bbdc-9acae17c7214",
            "cb7432c5-9799-484e-8650-dfcf38dd33e7"
          ],
          "display_name": false
        },
        {
          "uuid": "27abfee0-770f-49fe-81f1-302529e6ef9a",
          "name": "ETHANOL, 2-((2-(2-HYDROXYETHOXY)-4-NITROPHENYL)AMINO)-",
          "stdName": "ETHANOL, 2-((2-(2-HYDROXYETHOXY)-4-NITROPHENYL)AMINO)-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "37041afd-1950-43ab-8680-84b4d29b7685",
            "cb7432c5-9799-484e-8650-dfcf38dd33e7"
          ],
          "display_name": false
        },
        {
          "uuid": "75348b2b-8627-48b9-a1e1-bed5871e0fb2",
          "name": "HC YELLOW 4",
          "stdName": "HC YELLOW 4",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "21149f1a-5b97-4737-a82e-dcfaf2bba936"
          ],
          "display_name": false
        },
        {
          "uuid": "1eb5fdce-ff74-4dba-a086-d7ebb687023c",
          "name": "HC YELLOW NO. 4",
          "stdName": "HC YELLOW NO. 4",
          "type": "of",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "3b6b8514-b689-4d0c-92eb-12bf606dc506",
            "eebeb18d-ed54-47b9-848f-2d99faa51ba7",
            "af5a8988-99dc-4b7c-bbdc-9acae17c7214",
            "cb7432c5-9799-484e-8650-dfcf38dd33e7",
            "4f39aba3-8b91-4fed-b2a7-29f9382d521c"
          ],
          "display_name": true,
          "domains": [
            "cosmetic"
          ],
          "name_orgs": [
            {
              "uuid": "053b2f3d-5dc8-4f0a-8a90-b62720145a9d",
              "name_org": "INCI"
            }
          ]
        },
        {
          "uuid": "40391e4c-15c8-4a3a-b69e-39459b2724d8",
          "name": "HC YELLOW NO. 4 [HSDB]",
          "stdName": "HC YELLOW NO. 4 [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "cb7432c5-9799-484e-8650-dfcf38dd33e7",
            "4f39aba3-8b91-4fed-b2a7-29f9382d521c"
          ],
          "display_name": false
        },
        {
          "uuid": "c494ced4-ed02-b34d-f173-46e3ac616b90",
          "name": "HC YELLOW NO. 4 [IARC]",
          "stdName": "HC YELLOW NO. 4 [IARC]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "93cd56df-f46c-092b-ce07-7a7949ba0c3f"
          ],
          "display_name": false
        },
        {
          "uuid": "2a2a83c6-b35c-43bf-aa94-0d1e8f742acd",
          "name": "N,O-DI(2-HYDROXYETHYL)-2-AMINO-5-NITROPHENOL",
          "stdName": "N,O-DI(2-HYDROXYETHYL)-2-AMINO-5-NITROPHENOL",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "cb7432c5-9799-484e-8650-dfcf38dd33e7",
            "331caa7b-95b4-4ac9-8caa-453993b4938b"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "21149f1a-5b97-4737-a82e-dcfaf2bba936",
          "citation": "ICSAS BATCH 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "af5a8988-99dc-4b7c-bbdc-9acae17c7214",
          "citation": "PCPC-DB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "cb7432c5-9799-484e-8650-dfcf38dd33e7",
          "citation": "PERSONAL CARE PRODUCTS COUNCIL",
          "doc_type": "PERSONAL CARE PRODUCTS COUNCIL",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "37041afd-1950-43ab-8680-84b4d29b7685",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "331caa7b-95b4-4ac9-8caa-453993b4938b",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "4f39aba3-8b91-4fed-b2a7-29f9382d521c",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "0a35aea4-5220-4442-97cd-f6b12169d1f0",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390890000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f89e5996-93f8-470b-8064-8e43abf9cc27",
          "citation": "SRS import [0N97D5G157]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=0N97D5G157",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390890000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7c25afd2-1c4a-4f71-8dcc-3209bf41d8d2",
          "citation": "CHEMID 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "eebeb18d-ed54-47b9-848f-2d99faa51ba7",
          "citation": "HC YELLOW NO. 4 [INCI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "3b6b8514-b689-4d0c-92eb-12bf606dc506",
          "citation": "HC YELLOW NO. 4 [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "5f9289ef-4c98-6e1b-526b-a07cafb64278",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+59820-43-8",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "11f2171a-2aa3-256e-386b-462faefadfd6",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=59820-43-8",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "93cd56df-f46c-092b-ce07-7a7949ba0c3f",
          "citation": "IARC",
          "doc_type": "IARC",
          "public_domain": true
        },
        {
          "uuid": "ed6e61de-0af2-6b47-6016-0645b48db198",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "41a3c8a3-8062-0040-e5e0-a68130b83679",
          "citation": "RXNORM",
          "doc_type": "NLM",
          "public_domain": true
        },
        {
          "uuid": "eb8538e0-e5ca-4518-a9af-5481c989f76c",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "651578af-d7e7-994d-1905-cdaf6308c9ea",
          "citation": "DailyMed",
          "doc_type": "DAILYMED",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "a0cd30e3-a68f-4cf9-9e35-4ff608f70ea2",
          "id": "a0cd30e3-a68f-4cf9-9e35-4ff608f70ea2",
          "molfile": "\n  Marvin  01132108212D          \n\n 17 17  0  0  0  0            999 V2000\n    9.4505   -5.0140    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7360   -5.4265    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0215   -5.0140    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3071   -5.4265    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    6.5926   -5.0140    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.5926   -4.1891    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8782   -3.7766    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1637   -4.1891    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1637   -5.0140    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8782   -5.4265    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8782   -6.2516    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1637   -6.6641    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1637   -7.4891    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4492   -7.9015    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4492   -3.7766    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0\n    3.7348   -4.1891    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    4.4492   -2.9516    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  1  0  0  0  0\n  3  2  1  0  0  0  0\n  4  3  1  0  0  0  0\n  5  4  1  0  0  0  0\n  5  6  1  0  0  0  0\n 10  5  2  0  0  0  0\n  6  7  2  0  0  0  0\n  7  8  1  0  0  0  0\n  8  9  2  0  0  0  0\n  8 15  1  0  0  0  0\n 10  9  1  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  1  0  0  0  0\n 12 13  1  0  0  0  0\n 13 14  1  0  0  0  0\n 15 16  1  0  0  0  0\n 15 17  2  0  0  0  0\nM  CHG  2  15   1  16  -1\nM  END",
          "smiles": "c1cc(c(cc1[N+](=O)[O-])OCCO)NCCO",
          "formula": "C10H14N2O5",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "98ae1922-3e58-4555-83a7-b8d319bd6fd1"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "242.229",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "79e27855-0787-4e20-8882-9c329d5cbf8d",
      "version": "11",
      "structure": {
        "id": "1130cde4-5ad8-4347-9ae2-974e357cb7f4",
        "molfile": "\n  Marvin  01132101072D          \n\n 17 17  0  0  0  0            999 V2000\n    5.8782   -5.4265    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.5926   -5.0140    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.5926   -4.1891    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8782   -3.7766    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1637   -4.1891    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1637   -5.0140    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4492   -3.7766    0.0000 N   0  3  0  0  0  0  0  0  0  0  0  0\n    3.7348   -4.1891    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    4.4492   -2.9516    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3071   -5.4265    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0215   -5.0140    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7360   -5.4265    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4505   -5.0140    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8782   -6.2516    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1637   -6.6641    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1637   -7.4891    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4492   -7.9015    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  2  0  0  0  0\n  2  3  1  0  0  0  0\n  3  4  2  0  0  0  0\n  4  5  1  0  0  0  0\n  5  6  2  0  0  0  0\n  1  6  1  0  0  0  0\n  5  7  1  0  0  0  0\n  7  8  1  0  0  0  0\n  7  9  2  0  0  0  0\n  2 10  1  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  1  0  0  0  0\n 12 13  1  0  0  0  0\n  1 14  1  0  0  0  0\n 14 15  1  0  0  0  0\n 15 16  1  0  0  0  0\n 16 17  1  0  0  0  0\nM  CHG  2   7   1   8  -1\nM  END",
        "smiles": "c1cc(c(cc1[N+](=O)[O-])OCCO)NCCO",
        "formula": "C10H14N2O5",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "242.229",
        "optical_activity": "NONE",
        "references": [
          "f89e5996-93f8-470b-8064-8e43abf9cc27",
          "7c25afd2-1c4a-4f71-8dcc-3209bf41d8d2"
        ],
        "stereo_centers": 0
      },
      "unii": "0N97D5G157"
    }
  ]
}