{
  "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": "33c81407-b255-4129-97cf-b2702b58ee3b",
          "code": "31519-22-9",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=31519-22-9",
          "code_system": "CAS",
          "references": [
            "eaeabcb0-5b27-4139-bcd1-7259f731479c",
            "6ae21278-2b1d-4990-a2f6-ae4785bc041b"
          ]
        },
        {
          "uuid": "0d0ebf8d-862b-459c-9237-24efe8b4d4d5",
          "code": "C024023",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67024023",
          "code_system": "MESH",
          "references": [
            "eaeabcb0-5b27-4139-bcd1-7259f731479c"
          ]
        },
        {
          "uuid": "138f2e33-b7a0-4736-8e99-e2b873301b92",
          "code": "250-674-7",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.046.052",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "eaeabcb0-5b27-4139-bcd1-7259f731479c"
          ]
        },
        {
          "uuid": "8fdbcbde-2511-4b82-bee8-816e0fdcb73c",
          "code": "671",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/671",
          "code_system": "PUBCHEM",
          "references": [
            "eaeabcb0-5b27-4139-bcd1-7259f731479c"
          ]
        },
        {
          "uuid": "35bb97dc-a89b-df37-ef7c-369a22e4fe75",
          "code": "DTXSID0037730",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID0037730",
          "code_system": "EPA CompTox",
          "references": [
            "2e267e75-870b-c4f7-d8e6-1c8a2ea64c3b"
          ]
        },
        {
          "uuid": "2cdd438d-9264-4aad-acfc-597231d87c3c",
          "code": "1U77MR5Q7O",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "42dced08-9a9e-8c72-e659-225c7c88bb4f",
          "code": "18094",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:18094",
          "code_system": "CHEBI",
          "references": [
            "e06238cd-f668-12d4-f457-d466dda50d1d"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "0c1926c5-095c-4397-9f64-6ddce8b88b5c",
          "name": "1,4-DIHYDROXY-2-NAPHTHOIC ACID",
          "stdName": "1,4-DIHYDROXY-2-NAPHTHOIC ACID",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6e5b61fc-11d7-4050-bde7-28cff78533cf"
          ],
          "display_name": true
        }
      ],
      "references": [
        {
          "uuid": "6e5b61fc-11d7-4050-bde7-28cff78533cf",
          "citation": "CHEMID 2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "eaeabcb0-5b27-4139-bcd1-7259f731479c",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391223000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7a0f72c0-1216-4717-8d9b-039cb72be3a5",
          "citation": "SRS import [1U77MR5Q7O]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=1U77MR5Q7O",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391223000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "8fc1e76d-6e9c-4766-8864-46171d1d75c5",
          "citation": "CHEMID  2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "2e267e75-870b-c4f7-d8e6-1c8a2ea64c3b",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=31519-22-9",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "e06238cd-f668-12d4-f457-d466dda50d1d",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "6ae21278-2b1d-4990-a2f6-ae4785bc041b",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "2d7ffdc5-31f7-424b-a9c8-aaad095aea58",
          "id": "2d7ffdc5-31f7-424b-a9c8-aaad095aea58",
          "molfile": "\n  Marvin  01132102272D          \n\n 15 16  0  0  0  0            999 V2000\n    0.3997   -3.5049    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    0.3997   -2.6799    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.3148   -2.2674    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    1.1142   -2.2674    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.1142   -1.4424    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8287   -1.0299    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8287   -0.2049    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    2.5431   -1.4424    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.2576   -1.0299    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.9721   -1.4424    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.9721   -2.2674    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.2576   -2.6799    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.5431   -2.2674    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8287   -2.6799    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8287   -3.5049    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  2  0  0  0  0\n  4  2  1  0  0  0  0\n  4  5  1  0  0  0  0\n 14  4  2  0  0  0  0\n  5  6  2  0  0  0  0\n  6  7  1  0  0  0  0\n  6  8  1  0  0  0  0\n  8  9  1  0  0  0  0\n  8 13  2  0  0  0  0\n  9 10  2  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  2  0  0  0  0\n 12 13  1  0  0  0  0\n 14 13  1  0  0  0  0\n 14 15  1  0  0  0  0\nM  END",
          "smiles": "c1ccc2c(c1)c(cc(c2O)C(=O)O)O",
          "formula": "C11H8O4",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "3fc8034a-9ebe-46b2-afe1-5f53b861460f"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "204.1792",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "e2bf21bd-f9b5-4f15-b0e6-1f293876f7a8",
      "version": "4",
      "structure": {
        "id": "3bdfa784-ae0f-43b9-96ac-2279631c7e40",
        "molfile": "\n  Marvin  01132103102D          \n\n 15 16  0  0  0  0            999 V2000\n    1.8287   -2.6799    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.1142   -2.2674    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.1142   -1.4424    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8287   -1.0299    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.5431   -1.4424    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.2576   -1.0299    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.9721   -1.4424    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.9721   -2.2674    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.2576   -2.6799    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.5431   -2.2674    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.3997   -2.6799    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.3997   -3.5049    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.3148   -2.2674    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8287   -0.2049    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    1.8287   -3.5049    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  2  0  0  0  0\n  3  4  1  0  0  0  0\n  4  5  2  0  0  0  0\n  5  6  1  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  9 10  1  0  0  0  0\n  1 10  2  0  0  0  0\n  5 10  1  0  0  0  0\n 11 12  2  0  0  0  0\n 11 13  1  0  0  0  0\n  2 11  1  0  0  0  0\n  4 14  1  0  0  0  0\n  1 15  1  0  0  0  0\nM  END",
        "smiles": "c1ccc2c(c1)c(cc(c2O)C(=O)O)O",
        "formula": "C11H8O4",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "204.1792",
        "optical_activity": "NONE",
        "references": [
          "8fc1e76d-6e9c-4766-8864-46171d1d75c5",
          "7a0f72c0-1216-4717-8d9b-039cb72be3a5"
        ],
        "stereo_centers": 0
      },
      "unii": "1U77MR5Q7O"
    }
  ]
}