{
  "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": "7743509e-93e8-400c-ad5b-ca0924e51f7f",
          "code": "1-METHYLNAPHTHALENE",
          "comments": "JECFA|FUNCTIONAL CLASSIFICATION|Flavouring Agent",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=3518",
          "code_system": "JECFA EVALUATION",
          "references": [
            "572a8a17-f172-420a-bfcd-61e180e9d047"
          ]
        },
        {
          "uuid": "2582428d-2d5b-4a5e-9b6e-c645bff34bc7",
          "code": "90-12-0",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=90-12-0",
          "code_system": "CAS",
          "references": [
            "572a8a17-f172-420a-bfcd-61e180e9d047",
            "01e3e577-226d-468c-9c64-291e855bd423"
          ]
        },
        {
          "uuid": "bef03287-1133-4b61-b2f2-7b14f1029d55",
          "code": "C025968",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/67025968",
          "code_system": "MESH",
          "references": [
            "572a8a17-f172-420a-bfcd-61e180e9d047"
          ]
        },
        {
          "uuid": "80ebde87-e816-48d1-a023-27aeb24d127e",
          "code": "1-METHYLNAPHTHALENE",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/1-Methylnaphthalene",
          "code_system": "WIKIPEDIA",
          "references": [
            "572a8a17-f172-420a-bfcd-61e180e9d047"
          ]
        },
        {
          "uuid": "becb0546-c3e8-4aaa-91b7-85fdb193b090",
          "code": "201-966-8",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.001.788",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "572a8a17-f172-420a-bfcd-61e180e9d047"
          ]
        },
        {
          "uuid": "a5d92d56-da18-4a64-804f-099d05d56cc6",
          "code": "7002",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/7002",
          "code_system": "PUBCHEM",
          "references": [
            "572a8a17-f172-420a-bfcd-61e180e9d047"
          ]
        },
        {
          "uuid": "7421f8fd-a8ec-dcea-db74-612e475b8611",
          "code": "5268",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/5268",
          "code_system": "HSDB",
          "references": [
            "0e853c8e-2553-d72f-8d69-f0b7e8aae21d"
          ]
        },
        {
          "uuid": "3c8c2e54-0346-0d30-a7c6-064f501e7f05",
          "code": "DTXSID9020877",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID9020877",
          "code_system": "EPA CompTox",
          "references": [
            "dff93aed-2743-1f63-2bad-0fa312c2ec7c"
          ]
        },
        {
          "uuid": "46442f9b-7667-41c1-b4ae-e2bf1777fcf3",
          "code": "E7SK1Y1311",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "eca7a246-805f-0252-20e5-0420bdd99997",
          "code": "50717",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:50717",
          "code_system": "CHEBI",
          "references": [
            "0ff5f0e9-e522-6987-0811-40da22d57743"
          ]
        },
        {
          "uuid": "c42759c1-393c-3730-08a8-5c710a822f8e",
          "code": "3574",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=3574",
          "code_system": "NSC",
          "references": [
            "a39dd8ea-5914-60ad-f1d1-56e763f60212"
          ]
        },
        {
          "uuid": "99a56640-f99b-656a-8331-02a02b33fd2f",
          "code": "1334",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/1334/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "d766c4df-8c96-3ef3-43ec-76b10353609a"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "ce118cd9-f49a-45ce-92b9-7277dbd98716",
          "name": "1-METHYLNAPHTHALENE",
          "stdName": "1-METHYLNAPHTHALENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfc26056-31d1-4886-86a2-2bc460cd613e",
            "5406289f-104b-4b8a-acc9-1476c819b5bd",
            "70f69dd7-b1a2-44ec-938e-e24fb8dc6597",
            "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb",
            "02cf521e-ad0e-49e4-8ca8-49817ce57ced",
            "ff6c0b90-9096-493f-a3ca-dd790a805d6a"
          ],
          "display_name": true
        },
        {
          "uuid": "074167e1-c5f6-479f-917d-2633ded934e2",
          "name": "1-METHYLNAPHTHALENE [FHFI]",
          "stdName": "1-METHYLNAPHTHALENE [FHFI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb",
            "02cf521e-ad0e-49e4-8ca8-49817ce57ced"
          ],
          "display_name": false
        },
        {
          "uuid": "97c09d60-d541-4664-8f1c-cba3d50e16cd",
          "name": "1-METHYLNAPHTHALENE [HSDB]",
          "stdName": "1-METHYLNAPHTHALENE [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5406289f-104b-4b8a-acc9-1476c819b5bd",
            "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb"
          ],
          "display_name": false
        },
        {
          "uuid": "c4698ad8-4cf0-48e9-a319-bcd70ac818af",
          "name": "FEMA NO. 3193",
          "stdName": "FEMA NO. 3193",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfc26056-31d1-4886-86a2-2bc460cd613e",
            "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb"
          ],
          "display_name": false
        },
        {
          "uuid": "90be12a8-0ec0-45af-9f90-b3a6581312d6",
          "name": "MECHINAFU H",
          "stdName": "MECHINAFU H",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "260ae5c6-c950-4cae-9894-67b8fd43e02d",
            "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb"
          ],
          "display_name": false
        },
        {
          "uuid": "10be8614-1482-4513-8fb1-efce163dfd97",
          "name": "METHYNAPH H",
          "stdName": "METHYNAPH H",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "260ae5c6-c950-4cae-9894-67b8fd43e02d",
            "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb"
          ],
          "display_name": false
        },
        {
          "uuid": "6bf1e563-5239-4ff2-af00-5d4104c64c9f",
          "name": "NAPHTHALENE, 1-METHYL-",
          "stdName": "NAPHTHALENE, 1-METHYL-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "260ae5c6-c950-4cae-9894-67b8fd43e02d",
            "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb"
          ],
          "display_name": false
        },
        {
          "uuid": "1a21cb03-6f2e-4c0a-869e-20be72abb5ae",
          "name": "NSC-3574",
          "stdName": "NSC-3574",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "bfc26056-31d1-4886-86a2-2bc460cd613e",
            "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "bfc26056-31d1-4886-86a2-2bc460cd613e",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "c3d7c352-2d5f-4f69-a62a-8c81fe6aabcb",
          "citation": "CHEMID",
          "doc_type": "CHEMID",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "260ae5c6-c950-4cae-9894-67b8fd43e02d",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "02cf521e-ad0e-49e4-8ca8-49817ce57ced",
          "citation": "FHFI",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "5406289f-104b-4b8a-acc9-1476c819b5bd",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "572a8a17-f172-420a-bfcd-61e180e9d047",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391343000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ed23ade1-63a1-4c10-aaca-6fad8922ece4",
          "citation": "SRS import [E7SK1Y1311]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=E7SK1Y1311",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391343000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ff6c0b90-9096-493f-a3ca-dd790a805d6a",
          "citation": "1-METHYLNAPHTHALENE [FHFI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "70f69dd7-b1a2-44ec-938e-e24fb8dc6597",
          "citation": "1-METHYLNAPHTHALENE [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "0e853c8e-2553-d72f-8d69-f0b7e8aae21d",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+90-12-0",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "dff93aed-2743-1f63-2bad-0fa312c2ec7c",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=90-12-0",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "0ff5f0e9-e522-6987-0811-40da22d57743",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "01e3e577-226d-468c-9c64-291e855bd423",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "a39dd8ea-5914-60ad-f1d1-56e763f60212",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "d766c4df-8c96-3ef3-43ec-76b10353609a",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "5e5b94c2-1207-4238-9099-64cc435eb37d",
          "id": "5e5b94c2-1207-4238-9099-64cc435eb37d",
          "molfile": "\n  Marvin  01132104532D          \n\n 11 12  0  0  0  0            999 V2000\n   11.0503   -2.4684    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.2359   -3.2722    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   12.0248   -3.5135    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   12.2104   -4.3173    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.6070   -4.8800    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.8180   -4.6387    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.2147   -5.2014    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4257   -4.9601    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.2401   -4.1562    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.8435   -3.5936    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.6325   -3.8349    0.0000 C   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 11  2  2  0  0  0  0\n  4  3  2  0  0  0  0\n  5  4  1  0  0  0  0\n  6  5  2  0  0  0  0\n  6  7  1  0  0  0  0\n  6 11  1  0  0  0  0\n  7  8  2  0  0  0  0\n  8  9  1  0  0  0  0\n 10  9  2  0  0  0  0\n 11 10  1  0  0  0  0\nM  END",
          "smiles": "Cc1cccc2ccccc12",
          "formula": "C11H10",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "16d10cbf-4f7d-454d-a560-3c9406f0144b"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "142.1975",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "b74e6aa0-b340-4d1b-a055-daa1f0209756",
      "version": "7",
      "structure": {
        "id": "7c670c80-b350-4f3b-87b8-8e02f9f044d5",
        "molfile": "\n  Marvin  01132106272D          \n\n 11 12  0  0  0  0            999 V2000\n   10.8180   -4.6387    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.6325   -3.8349    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.8435   -3.5936    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.2401   -4.1562    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4257   -4.9601    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.2147   -5.2014    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.2359   -3.2722    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   12.0248   -3.5135    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   12.2104   -4.3173    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.6070   -4.8800    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.0503   -2.4684    0.0000 C   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  5  4  2  0  0  0  0\n  6  5  1  0  0  0  0\n  1  6  2  0  0  0  0\n  2  7  1  0  0  0  0\n  7  8  2  0  0  0  0\n  9  8  1  0  0  0  0\n 10  9  2  0  0  0  0\n  1 10  1  0  0  0  0\n  7 11  1  0  0  0  0\nM  END",
        "smiles": "Cc1cccc2ccccc12",
        "formula": "C11H10",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "142.1975",
        "optical_activity": "NONE",
        "references": [
          "260ae5c6-c950-4cae-9894-67b8fd43e02d",
          "ed23ade1-63a1-4c10-aaca-6fad8922ece4"
        ],
        "stereo_centers": 0
      },
      "unii": "E7SK1Y1311"
    }
  ]
}