{
  "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": "46bf4769-408c-4fa3-aa80-a2f8f2cf11a9",
          "code": "5873-54-1",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=5873-54-1",
          "code_system": "CAS",
          "references": [
            "3431f349-7924-4523-953e-9afa3f34b67d",
            "c5f4699e-8134-4482-b810-6065c76b2e54"
          ]
        },
        {
          "uuid": "e15de4b1-201a-4e48-8dd9-35bd8795b1a8",
          "code": "227-534-9",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.239.193",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "3431f349-7924-4523-953e-9afa3f34b67d"
          ]
        },
        {
          "uuid": "ece4105d-41c8-48eb-8f50-da860813bf28",
          "code": "62593",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/62593",
          "code_system": "PUBCHEM",
          "references": [
            "3431f349-7924-4523-953e-9afa3f34b67d"
          ]
        },
        {
          "uuid": "29f5d2d7-3939-b2db-f9b6-6882a302a1a8",
          "code": "DTXSID9027607",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID9027607",
          "code_system": "EPA CompTox",
          "references": [
            "e382930b-40ce-9f55-dec3-113b7449f101"
          ]
        },
        {
          "uuid": "921ad89f-8e41-4aff-95f9-7852c18e35ed",
          "code": "YVQ6NX5H3Y",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "0e4ac70c-103c-4d0b-833b-f4a5e9cf6c7d",
          "name": "1-ISOCYANATO-2-((4-ISOCYANATOPHENYL)METHYL)BENZENE",
          "stdName": "1-ISOCYANATO-2-((4-ISOCYANATOPHENYL)METHYL)BENZENE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0057102c-419e-493e-8757-5227324bff0d",
            "55bcf901-88af-491d-b1ab-a108899c5b8b"
          ],
          "display_name": false
        },
        {
          "uuid": "2a09952c-507e-432c-bb0d-dce65f736ef4",
          "name": "2,4'-DIISOCYANATODIPHENYLMETHANE",
          "stdName": "2,4'-DIISOCYANATODIPHENYLMETHANE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0057102c-419e-493e-8757-5227324bff0d",
            "55bcf901-88af-491d-b1ab-a108899c5b8b"
          ],
          "display_name": false
        },
        {
          "uuid": "f938b923-5786-4b92-8f0c-630d15df0bf1",
          "name": "2,4'-DIPHENYLMETHANE DIISOCYANATE",
          "stdName": "2,4'-DIPHENYLMETHANE DIISOCYANATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0057102c-419e-493e-8757-5227324bff0d"
          ],
          "display_name": true
        },
        {
          "uuid": "6f88b48c-3275-4b20-820d-ea40478aac7e",
          "name": "BENZENE, 1-ISOCYANATO-2-((4-ISOCYANATOPHENYL)METHYL)-",
          "stdName": "BENZENE, 1-ISOCYANATO-2-((4-ISOCYANATOPHENYL)METHYL)-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0057102c-419e-493e-8757-5227324bff0d",
            "55bcf901-88af-491d-b1ab-a108899c5b8b"
          ],
          "display_name": false
        },
        {
          "uuid": "3f256845-44bd-4706-a9c2-e3e4f23a8a95",
          "name": "DIPHENYLMETHANE 2,4'-DIISOCYANATE",
          "stdName": "DIPHENYLMETHANE 2,4'-DIISOCYANATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "55bcf901-88af-491d-b1ab-a108899c5b8b",
            "e590db0a-7c9e-4f13-adac-d9704d18506e"
          ],
          "display_name": false
        },
        {
          "uuid": "64e6dadc-b6c6-4cb1-aca1-9fe17e7e517a",
          "name": "DIPHENYLMETHANE-2,4-DIISOCYANATE",
          "stdName": "DIPHENYLMETHANE-2,4-DIISOCYANATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0057102c-419e-493e-8757-5227324bff0d",
            "55bcf901-88af-491d-b1ab-a108899c5b8b"
          ],
          "display_name": false
        },
        {
          "uuid": "34ae6090-5132-4f40-bf53-0867a7ae9211",
          "name": "ISOCYANIC ACID, DIESTER WITH 2,4'-METHYLENEDIPHENOL",
          "stdName": "ISOCYANIC ACID, DIESTER WITH 2,4'-METHYLENEDIPHENOL",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "0057102c-419e-493e-8757-5227324bff0d",
            "55bcf901-88af-491d-b1ab-a108899c5b8b"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "0057102c-419e-493e-8757-5227324bff0d",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "55bcf901-88af-491d-b1ab-a108899c5b8b",
          "citation": "STN (SCIFINDER)",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "e590db0a-7c9e-4f13-adac-d9704d18506e",
          "citation": "CFSAN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "3431f349-7924-4523-953e-9afa3f34b67d",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391422000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "edf67e2d-db69-4d54-8410-74d629d31a6b",
          "citation": "SRS import [YVQ6NX5H3Y]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=YVQ6NX5H3Y",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391422000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "01adf8c9-4505-4a2d-acbe-d19ee827bb78",
          "citation": "CHEMID  2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "e382930b-40ce-9f55-dec3-113b7449f101",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=5873-54-1",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "c5f4699e-8134-4482-b810-6065c76b2e54",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "02ad4fd3-ade5-4aad-944d-8c5ff174570c",
          "id": "02ad4fd3-ade5-4aad-944d-8c5ff174570c",
          "molfile": "\n  Marvin  01132100272D          \n\n 19 20  0  0  0  0            999 V2000\n    9.4953   -6.8056    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4953   -5.9806    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4953   -5.1581    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7834   -4.7443    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0638   -5.1544    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3541   -4.7396    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3541   -3.9143    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6428   -3.4994    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9201   -3.9094    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.2147   -3.4970    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4975   -3.9077    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4975   -4.7356    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.2140   -5.1439    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9201   -4.7337    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6352   -5.1463    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6352   -5.9713    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6352   -6.8010    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0679   -3.5038    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7834   -3.9145    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  2  0  0  0  0\n  4  3  1  0  0  0  0\n  5  4  1  0  0  0  0\n  4 19  2  0  0  0  0\n  6  5  2  0  0  0  0\n  7  6  1  0  0  0  0\n  8  7  1  0  0  0  0\n 18  7  2  0  0  0  0\n  9  8  1  0  0  0  0\n  9 10  1  0  0  0  0\n 14  9  2  0  0  0  0\n 10 11  2  0  0  0  0\n 11 12  1  0  0  0  0\n 12 13  2  0  0  0  0\n 13 14  1  0  0  0  0\n 14 15  1  0  0  0  0\n 15 16  2  0  0  0  0\n 16 17  2  0  0  0  0\n 19 18  1  0  0  0  0\nM  END",
          "smiles": "c1ccc(c(c1)Cc2ccc(cc2)N=C=O)N=C=O",
          "formula": "C15H10N2O2",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "6dc77f09-2b74-486b-a462-d22f1ae71ac5"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "250.2527",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "1aa857de-3e1a-49e5-9df1-9578047dc144",
      "version": "3",
      "structure": {
        "id": "4800b0e7-72ec-4295-be54-4b30a5c03088",
        "molfile": "\n  Marvin  01132103462D          \n\n 19 20  0  0  0  0            999 V2000\n    5.9201   -4.7337    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9201   -3.9094    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6428   -3.4994    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3541   -3.9143    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3541   -4.7396    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0638   -5.1544    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7834   -4.7443    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7834   -3.9145    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0679   -3.5038    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4953   -5.1581    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4953   -5.9806    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4953   -6.8056    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.2147   -3.4970    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4975   -3.9077    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4975   -4.7356    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.2140   -5.1439    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6352   -5.1463    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6352   -5.9713    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6352   -6.8010    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  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  4  1  0  0  0  0\n  7 10  1  0  0  0  0\n 10 11  2  0  0  0  0\n 11 12  2  0  0  0  0\n  2 13  1  0  0  0  0\n 13 14  2  0  0  0  0\n 14 15  1  0  0  0  0\n 15 16  2  0  0  0  0\n 16  1  1  0  0  0  0\n  1 17  1  0  0  0  0\n 17 18  2  0  0  0  0\n 18 19  2  0  0  0  0\nM  END",
        "smiles": "c1ccc(c(c1)Cc2ccc(cc2)N=C=O)N=C=O",
        "formula": "C15H10N2O2",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "250.2527",
        "optical_activity": "NONE",
        "references": [
          "01adf8c9-4505-4a2d-acbe-d19ee827bb78",
          "edf67e2d-db69-4d54-8410-74d629d31a6b"
        ],
        "stereo_centers": 0
      },
      "unii": "YVQ6NX5H3Y"
    }
  ]
}