{
  "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": "98065f1a-d622-4428-94c9-9232bd7ca367",
          "code": "500-22-1",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=500-22-1",
          "code_system": "CAS",
          "references": [
            "47499c9c-5981-4144-ae5e-9a0f3ec027f0",
            "980878c5-8b96-4697-9aa9-92eb0e89e57f"
          ]
        },
        {
          "uuid": "0b3ae781-5588-4a2a-bbbf-76c38f05aa47",
          "code": "C014785",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67014785",
          "code_system": "MESH",
          "references": [
            "47499c9c-5981-4144-ae5e-9a0f3ec027f0"
          ]
        },
        {
          "uuid": "9e21890c-c8da-48a3-89aa-b4ea2199dfa8",
          "code": "207-900-4",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.007.183",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "47499c9c-5981-4144-ae5e-9a0f3ec027f0"
          ]
        },
        {
          "uuid": "835ce75e-fd61-493d-80fe-09fec17e01f2",
          "code": "SUB14644MIG",
          "type": "PRIMARY",
          "code_system": "EVMPD",
          "references": [
            "47499c9c-5981-4144-ae5e-9a0f3ec027f0"
          ]
        },
        {
          "uuid": "f6198107-66bf-49ac-8cfe-6146edbc16ac",
          "code": "10371",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/10371",
          "code_system": "PUBCHEM",
          "references": [
            "47499c9c-5981-4144-ae5e-9a0f3ec027f0"
          ]
        },
        {
          "uuid": "1339182d-8bba-5b12-3780-8c313651a8a7",
          "code": "DTXSID2022044",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID2022044",
          "code_system": "EPA CompTox",
          "references": [
            "f559f606-ac72-5584-cca0-8c3fd6d319d2"
          ]
        },
        {
          "uuid": "ce8b1c00-6222-4286-bd85-326e567eefa5",
          "code": "840R4IDQ1T",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "707eea7f-978d-5863-7c48-a8410ced62e3",
          "code": "28345",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:28345",
          "code_system": "CHEBI"
        },
        {
          "uuid": "9ad83724-c7b4-4859-3ca9-684dfc590d13",
          "code": "Pyridine-3-carboxaldehyde",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/Pyridine-3-carboxaldehyde",
          "code_system": "WIKIPEDIA",
          "references": [
            "8882cd09-3c75-f94d-addd-1779b5a31456"
          ]
        },
        {
          "uuid": "c055cb93-6d7a-ab6b-0118-554ba5a793a0",
          "code": "100000079971",
          "type": "PRIMARY",
          "code_system": "SMS_ID",
          "references": [
            "3f0d2162-1bf2-aa5e-1106-f74cce2e6805"
          ]
        },
        {
          "uuid": "4d7a1361-603f-5fd1-63fd-02ce174a246d",
          "code": "8952",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=8952",
          "code_system": "NSC",
          "references": [
            "4e85b14e-5413-ddbd-7f7e-17434cc018ae"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "b9478b0a-526e-4652-b364-61786b0ac8ee",
          "name": "3-FORMYLPYRIDINE",
          "stdName": "3-FORMYLPYRIDINE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "69e49d39-da05-4a4e-a275-9eca1d9e7180",
            "926277fa-e3cf-4034-95e6-cfecd00b3919"
          ],
          "display_name": false
        },
        {
          "uuid": "8463f3bc-c7da-4c55-b188-baa5d1e68d77",
          "name": "3-PYRIDINALDEHYDE",
          "stdName": "3-PYRIDINALDEHYDE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "69e49d39-da05-4a4e-a275-9eca1d9e7180",
            "926277fa-e3cf-4034-95e6-cfecd00b3919"
          ],
          "display_name": false
        },
        {
          "uuid": "e48b459a-78b9-4b6c-ae5f-8abcd2a68c8d",
          "name": "3-PYRIDINECARBOXALDEHYDE",
          "stdName": "3-PYRIDINECARBOXALDEHYDE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "69e49d39-da05-4a4e-a275-9eca1d9e7180",
            "926277fa-e3cf-4034-95e6-cfecd00b3919"
          ],
          "display_name": false
        },
        {
          "uuid": "6cea3d94-4a27-4317-9b5c-8ed32017e62c",
          "name": "NICOTINALDEHYDE",
          "stdName": "NICOTINALDEHYDE",
          "type": "of",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "69e49d39-da05-4a4e-a275-9eca1d9e7180",
            "700fbc05-9071-46e0-b00d-a61c14c0123c",
            "967923e4-bc82-4eba-b596-79c35f214589",
            "231dbdb2-11cc-4ba7-8ade-1e735db02a1c",
            "46e9cb63-2724-4038-acbc-763d19189f45",
            "926277fa-e3cf-4034-95e6-cfecd00b3919"
          ],
          "display_name": true,
          "domains": [
            "cosmetic"
          ],
          "name_orgs": [
            {
              "uuid": "19266d63-f5b5-4b48-a176-15ca63596752",
              "name_org": "INCI"
            }
          ]
        },
        {
          "uuid": "2aefea39-e811-41d8-8960-19be96dbff62",
          "name": "NICOTINIC ALDEHYDE",
          "stdName": "NICOTINIC ALDEHYDE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "69e49d39-da05-4a4e-a275-9eca1d9e7180",
            "926277fa-e3cf-4034-95e6-cfecd00b3919"
          ],
          "display_name": false
        },
        {
          "uuid": "5ea20a2e-6820-448a-9d2c-32dded5ceccc",
          "name": "NSC-8952",
          "stdName": "NSC-8952",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "69e49d39-da05-4a4e-a275-9eca1d9e7180",
            "f9bf6a83-ff1d-4d73-ba1a-ef229e021eb3"
          ],
          "display_name": false
        },
        {
          "uuid": "f089ecbd-ad7b-b12e-737b-4c0a8ae150af",
          "name": "Nicotinaldehyde [WHO-DD]",
          "stdName": "NICOTINALDEHYDE [WHO-DD]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "8fb9e9cf-27fa-c4fe-aa4c-e6dcf4bab5e5"
          ],
          "display_name": false
        },
        {
          "uuid": "0f6e76fc-943f-42ba-8cc2-1df374e4844c",
          "name": "PYRIDINE-3-ALDEHYDE",
          "stdName": "PYRIDINE-3-ALDEHYDE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "c1a9d178-d43d-4179-9491-36f425219d86"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "926277fa-e3cf-4034-95e6-cfecd00b3919",
          "citation": "SAX",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "69e49d39-da05-4a4e-a275-9eca1d9e7180",
          "citation": "SAX DANGEROUS PROPERTIES",
          "doc_type": "SAX DANGEROUS PROPERTIES",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "967923e4-bc82-4eba-b596-79c35f214589",
          "citation": "PCPC",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "46e9cb63-2724-4038-acbc-763d19189f45",
          "citation": "WHO-DD",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f9bf6a83-ff1d-4d73-ba1a-ef229e021eb3",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "47499c9c-5981-4144-ae5e-9a0f3ec027f0",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390872000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "fa911340-24e5-45ab-b2f7-ce5c825ccbe2",
          "citation": "SRS import [840R4IDQ1T]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=840R4IDQ1T",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390872000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "935c8ba7-1cd9-4969-95ed-63bbc937a5fb",
          "citation": "SAXS",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "700fbc05-9071-46e0-b00d-a61c14c0123c",
          "citation": "NICOTINALDEHYDE [INCI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "231dbdb2-11cc-4ba7-8ade-1e735db02a1c",
          "citation": "NICOTINALDEHYDE [WHO-DD]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "f559f606-ac72-5584-cca0-8c3fd6d319d2",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=500-22-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "3f0d2162-1bf2-aa5e-1106-f74cce2e6805",
          "citation": "EU-SRS",
          "doc_type": "EMA LIST",
          "public_domain": true
        },
        {
          "uuid": "8882cd09-3c75-f94d-addd-1779b5a31456",
          "citation": "WIKI",
          "doc_type": "WIKI",
          "public_domain": true
        },
        {
          "uuid": "980878c5-8b96-4697-9aa9-92eb0e89e57f",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "4e85b14e-5413-ddbd-7f7e-17434cc018ae",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "8fb9e9cf-27fa-c4fe-aa4c-e6dcf4bab5e5",
          "citation": "WHO-DD",
          "doc_type": "WHO DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "c1a9d178-d43d-4179-9491-36f425219d86",
          "citation": "mhra",
          "doc_type": "MHRSA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "a6837fd4-9f48-4f5a-847f-ee5f1efb0893",
          "id": "a6837fd4-9f48-4f5a-847f-ee5f1efb0893",
          "molfile": "\n  Marvin  01132108392D          \n\n  8  8  0  0  0  0            999 V2000\n    5.8529   -3.7220    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8529   -4.5421    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1380   -4.9568    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4300   -4.5437    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.7146   -4.9579    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.7146   -5.7829    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4302   -6.1904    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1380   -5.7776    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  2  0  0  0  0\n  3  2  1  0  0  0  0\n  3  4  1  0  0  0  0\n  8  3  2  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\nM  END",
          "smiles": "c1cc(cnc1)C=O",
          "formula": "C6H5NO",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "932ff60e-affd-4052-8af3-0a30272c1ca1"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "107.1102",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "49a7e836-26de-477b-be4e-590c5c5d74d9",
      "version": "15",
      "structure": {
        "id": "ab228824-06ae-4847-97a5-96f395efd9e4",
        "molfile": "\n  Marvin  01132108532D          \n\n  8  8  0  0  0  0            999 V2000\n    5.8529   -3.7220    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8529   -4.5421    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1380   -4.9568    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4300   -4.5437    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.7146   -4.9579    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.7146   -5.7829    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4302   -6.1904    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1380   -5.7776    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  2  0  0  0  0\n  3  2  1  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  3  2  0  0  0  0\nM  END",
        "smiles": "c1cc(cnc1)C=O",
        "formula": "C6H5NO",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "107.1102",
        "optical_activity": "NONE",
        "references": [
          "fa911340-24e5-45ab-b2f7-ce5c825ccbe2",
          "935c8ba7-1cd9-4969-95ed-63bbc937a5fb"
        ],
        "stereo_centers": 0
      },
      "unii": "840R4IDQ1T"
    }
  ]
}