{
  "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": "34b1ae32-8940-4209-a640-03855082a683",
          "code": "3-MERCAPTO-2-METHYLPENTANAL",
          "comments": "JECFA|FUNCTIONAL CLASSIFICATION|Flavouring Agent",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=4244",
          "code_system": "JECFA EVALUATION",
          "references": [
            "62c76366-bfad-43c4-ac41-849ced378719"
          ]
        },
        {
          "uuid": "e833dbd9-e5ee-4df6-8d0e-e2657cc21a15",
          "code": "227456-28-2",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=227456-28-2",
          "code_system": "CAS",
          "references": [
            "62c76366-bfad-43c4-ac41-849ced378719",
            "86d8021b-e812-4376-968c-fdb954593e22"
          ]
        },
        {
          "uuid": "21c1ba8b-7cba-4687-824c-320530615a62",
          "code": "527435",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/527435",
          "code_system": "PUBCHEM",
          "references": [
            "62c76366-bfad-43c4-ac41-849ced378719"
          ]
        },
        {
          "uuid": "a45884b9-087e-417e-abcd-ff6a5eb4bdb3",
          "code": "04LG18GGDN",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "a050621a-f0e5-85d5-8a00-06383a4cda55",
          "code": "DTXSID80945425",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID80945425",
          "code_system": "EPA CompTox"
        },
        {
          "uuid": "f0696b8c-8423-0a0e-1a43-8ac8a73f801c",
          "code": "1301",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/1301/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "c4c352a7-fc9c-6f2e-c264-f29b9e5f1a47"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "9a9fdf0d-b94d-4bf0-9e13-ee2744204341",
          "name": "3-MERCAPTO-2-METHYLPENTANAL",
          "stdName": "3-MERCAPTO-2-METHYLPENTANAL",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "6f191657-7f73-4030-8045-03d773f537e9",
            "a7d87ecf-29c4-4595-97c9-221159b0f06b",
            "f7a4672a-a1e9-42b9-8a27-d63de03929aa",
            "acd87cd9-f14c-4164-9569-70f2a28dba3c"
          ],
          "display_name": true
        },
        {
          "uuid": "14a0d8a2-b4f6-44ba-8add-0715cc719e4b",
          "name": "3-MERCAPTO-2-METHYLPENTANAL [FHFI]",
          "stdName": "3-MERCAPTO-2-METHYLPENTANAL [FHFI]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "f7a4672a-a1e9-42b9-8a27-d63de03929aa",
            "acd87cd9-f14c-4164-9569-70f2a28dba3c"
          ],
          "display_name": false
        },
        {
          "uuid": "a466d783-dd02-4701-a01f-5af12ad0b297",
          "name": "FEMA NO. 3994",
          "stdName": "FEMA NO. 3994",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "f7a4672a-a1e9-42b9-8a27-d63de03929aa",
            "acd87cd9-f14c-4164-9569-70f2a28dba3c"
          ],
          "display_name": false
        },
        {
          "uuid": "d5c15b2b-07bf-4eb5-9e34-3c7191d1bf83",
          "name": "PENTANAL, 3-MERCAPTO-2-METHYL-",
          "stdName": "PENTANAL, 3-MERCAPTO-2-METHYL-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "ca3a00a2-4391-4ebb-8eef-607910c84000",
            "acd87cd9-f14c-4164-9569-70f2a28dba3c"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "a7d87ecf-29c4-4595-97c9-221159b0f06b",
          "citation": "JECFA",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "acd87cd9-f14c-4164-9569-70f2a28dba3c",
          "citation": "JECFA: JOINT FAO/WHO COMMITTEE FOOD ADD",
          "doc_type": "JECFA: JOINT FAO/WHO COMMITTEE FOOD ADD",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ca3a00a2-4391-4ebb-8eef-607910c84000",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f7a4672a-a1e9-42b9-8a27-d63de03929aa",
          "citation": "FHFI",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "62c76366-bfad-43c4-ac41-849ced378719",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391329000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "db51de36-e87d-482a-af6c-9e3a14354a3f",
          "citation": "SRS import [04LG18GGDN]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=04LG18GGDN",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391329000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "6f191657-7f73-4030-8045-03d773f537e9",
          "citation": "3-MERCAPTO-2-METHYLPENTANAL [FHFI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "86d8021b-e812-4376-968c-fdb954593e22",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "c4c352a7-fc9c-6f2e-c264-f29b9e5f1a47",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "e38e1f5b-7650-4263-8451-7d265b9cc627",
          "id": "e38e1f5b-7650-4263-8451-7d265b9cc627",
          "molfile": "\n  Marvin  01132111472D          \n\n  8  7  0  0  0  0            999 V2000\n    3.6288   -3.8990    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.3455   -4.3115    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.0579   -3.8990    0.0000 C   0  0  0  0  0  0  0  0  0  3  0  0\n    5.0579   -3.0741    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    5.7704   -4.3115    0.0000 C   0  0  0  0  0  0  0  0  0  3  0  0\n    5.7704   -5.1365    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.4870   -3.8990    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.4870   -3.0741    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  1  0  0  0  0\n  4  3  1  0  0  0  0\n  3  5  1  0  0  0  0\n  6  5  1  0  0  0  0\n  7  5  1  0  0  0  0\n  8  7  2  0  0  0  0\nM  END",
          "smiles": "CCC(C(C)C=O)S",
          "formula": "C6H12OS",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "MIXED",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "0f9974f5-1250-44fe-913a-214da4a1c5da"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "132.2252",
          "optical_activity": "UNSPECIFIED",
          "stereo_centers": 2
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "acd4422c-5983-4fa1-b66c-47ba0e103a49",
      "version": "5",
      "structure": {
        "id": "8a05263c-c3aa-43c7-a11f-1339599e04f0",
        "molfile": "\n  Marvin  01132107102D          \n\n  8  7  0  0  0  0            999 V2000\n    3.6288   -3.8990    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.3455   -4.3115    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.7704   -5.1365    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.0579   -3.0741    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    5.0579   -3.8990    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.4870   -3.8990    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.4870   -3.0741    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.7704   -4.3115    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  5  1  0  0  0  0\n  3  8  1  0  0  0  0\n  4  5  1  0  0  0  0\n  5  8  1  0  0  0  0\n  6  8  1  0  0  0  0\n  7  6  2  0  0  0  0\nM  END",
        "smiles": "CCC(C(C)C=O)S",
        "formula": "C6H12OS",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "MIXED",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "132.2252",
        "optical_activity": "UNSPECIFIED",
        "references": [
          "ca3a00a2-4391-4ebb-8eef-607910c84000",
          "db51de36-e87d-482a-af6c-9e3a14354a3f"
        ],
        "stereo_centers": 2
      },
      "unii": "04LG18GGDN"
    }
  ]
}