{
  "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": "710d42e7-ab17-4611-8110-5ac32b134be3",
          "code": "107-96-0",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=107-96-0",
          "code_system": "CAS",
          "references": [
            "82a10b94-6b5a-481e-9e80-fe7c50ec57fe",
            "ddf4ec5b-3d29-46c4-8934-b21852c429a8"
          ]
        },
        {
          "uuid": "a65c87bb-1756-4ec2-b6ae-2e109cccb7af",
          "code": "D015097",
          "type": "PRIMARY",
          "url": "http://www.ncbi.nlm.nih.gov/mesh/68015097",
          "code_system": "MESH",
          "references": [
            "82a10b94-6b5a-481e-9e80-fe7c50ec57fe"
          ]
        },
        {
          "uuid": "f47f8362-46cc-4dd8-b870-5216722b39fe",
          "code": "3-MERCAPTOPROPIONIC ACID",
          "comments": "JECFA|FUNCTIONAL CLASSIFICATION|Flavouring Agent",
          "type": "PRIMARY",
          "url": "http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=6056",
          "code_system": "JECFA EVALUATION",
          "references": [
            "82a10b94-6b5a-481e-9e80-fe7c50ec57fe"
          ]
        },
        {
          "uuid": "56df0ff0-986a-4407-969e-cbcdaf10d1b1",
          "code": "203-537-0",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.003.216",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "82a10b94-6b5a-481e-9e80-fe7c50ec57fe"
          ]
        },
        {
          "uuid": "67fa1a9f-119f-4957-af34-dbe33f519877",
          "code": "6514",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/6514",
          "code_system": "PUBCHEM",
          "references": [
            "82a10b94-6b5a-481e-9e80-fe7c50ec57fe"
          ]
        },
        {
          "uuid": "80c0a742-5072-4604-c5a8-030f2672f5f5",
          "code": "5381",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/source/hsdb/5381",
          "code_system": "HSDB",
          "references": [
            "e62e0665-3a1d-6c4a-5812-3baeecd9ab33"
          ]
        },
        {
          "uuid": "c07d16bb-83b7-7b86-2e25-8c3bc51c791b",
          "code": "DTXSID8026775",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID8026775",
          "code_system": "EPA CompTox",
          "references": [
            "d0056fdd-5361-6c52-e540-bdead35b0200"
          ]
        },
        {
          "uuid": "88950943-3940-4814-bc22-0836c927e5b0",
          "code": "B03TJ3QU9M",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        },
        {
          "uuid": "e7d2a035-c5f2-a583-d15a-2a7a791a6993",
          "code": "44111",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:44111",
          "code_system": "CHEBI",
          "references": [
            "d392c233-b042-ede5-2ad4-a99814e58927"
          ]
        },
        {
          "uuid": "7a4cb5ff-0986-c9db-cd7e-04c6469154ee",
          "code": "47871",
          "type": "PRIMARY",
          "url": "https://www.ebi.ac.uk/chebi/chebiOntology.do?chebiId=CHEBI:47871",
          "code_system": "CHEBI",
          "references": [
            "d392c233-b042-ede5-2ad4-a99814e58927"
          ]
        },
        {
          "uuid": "20623e57-a2ca-a36e-b0d5-81aa237edae8",
          "code": "3-Mercaptopropionic acid",
          "type": "PRIMARY",
          "url": "https://en.wikipedia.org/wiki/3-Mercaptopropionic_acid",
          "code_system": "WIKIPEDIA",
          "references": [
            "88128585-718b-ddf0-351b-6bbd9882f31a"
          ]
        },
        {
          "uuid": "cf43fc22-cb9c-eee2-718b-9d5435e81def",
          "code": "437",
          "type": "PRIMARY",
          "url": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=437",
          "code_system": "NSC",
          "references": [
            "ad02965b-57d4-cc67-add7-8e60db442aef"
          ]
        },
        {
          "uuid": "9d892ca8-050d-313c-cf4d-399809bb3494",
          "code": "1914",
          "type": "PRIMARY",
          "url": "https://www.fao.org/food/food-safety-quality/scientific-advice/jecfa/jecfa-flav/details/en/c/1914/",
          "code_system": "JECFA MONOGRAPH",
          "references": [
            "c2fc006f-4d15-5d4f-d85b-fc476e367bf3"
          ]
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "2f1af2cc-6756-4573-847f-82756ff858f8",
          "name": ".BETA.-MERCAPTOPROPANOIC ACID",
          "stdName": ".BETA.-MERCAPTOPROPANOIC ACID",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "ece3569e-c54c-404d-b6b5-0e1a2abd67f1"
          ],
          "display_name": false
        },
        {
          "uuid": "390a3b29-f043-407b-9479-65527d07126c",
          "name": ".BETA.-MERCAPTOPROPIONIC ACID",
          "stdName": ".BETA.-MERCAPTOPROPIONIC ACID",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "ece3569e-c54c-404d-b6b5-0e1a2abd67f1"
          ],
          "display_name": false
        },
        {
          "uuid": "9700a225-80e2-46f2-b4b1-b73736865369",
          "name": ".BETA.-THIOPROPIONIC ACID",
          "stdName": ".BETA.-THIOPROPIONIC ACID",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "ece3569e-c54c-404d-b6b5-0e1a2abd67f1"
          ],
          "display_name": false
        },
        {
          "uuid": "a76dec8b-48a3-460a-9c62-41b7e0d9e836",
          "name": "2-MERCAPTOETHANECARBOXYLIC ACID",
          "stdName": "2-MERCAPTOETHANECARBOXYLIC ACID",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "0566a3ad-c16b-4388-8c8e-80bd28456a74"
          ],
          "display_name": false
        },
        {
          "uuid": "0c837794-db2b-4866-abfd-921177244065",
          "name": "3-MERCAPTOPROPIONIC ACID",
          "stdName": "3-MERCAPTOPROPIONIC ACID",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "9d3238e6-135b-4fda-96c8-23efc7140a40",
            "0566a3ad-c16b-4388-8c8e-80bd28456a74",
            "7d82229e-f208-4e33-9132-9e38e13dc42d"
          ],
          "display_name": true
        },
        {
          "uuid": "82461fb0-fbdd-4df6-a8d2-7c19dca85a45",
          "name": "3-MERCAPTOPROPIONIC ACID [HSDB]",
          "stdName": "3-MERCAPTOPROPIONIC ACID [HSDB]",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "9d3238e6-135b-4fda-96c8-23efc7140a40"
          ],
          "display_name": false
        },
        {
          "uuid": "4215cc44-202b-4128-b683-7c0589a165ba",
          "name": "3-THIOPROPANOIC ACID",
          "stdName": "3-THIOPROPANOIC ACID",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "0566a3ad-c16b-4388-8c8e-80bd28456a74"
          ],
          "display_name": false
        },
        {
          "uuid": "dbfeae62-55aa-9e2c-a253-1c34bd325cd4",
          "name": "DEAMINO CYSTEINE",
          "stdName": "DEAMINO CYSTEINE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "2ca24ee0-7c64-2961-ba46-bf72a853e006"
          ],
          "display_name": false
        },
        {
          "uuid": "a0546648-929c-4917-9fc6-8da9037874c2",
          "name": "FEMA NO. 4587",
          "stdName": "FEMA NO. 4587",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "4f00d9fe-f19e-4722-bfe6-9c6ee35145e2"
          ],
          "display_name": false
        },
        {
          "uuid": "65d79f5b-7826-442f-90ee-d92143c63e70",
          "name": "MERCAPTOPROPIONIC ACID",
          "stdName": "MERCAPTOPROPIONIC ACID",
          "type": "of",
          "languages": [
            "en"
          ],
          "preferred": true,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "f120e10e-9a74-47e0-a0f4-eec5f7c183eb",
            "048f8b3c-e054-48cb-8d78-ec1142e85094"
          ],
          "display_name": false,
          "domains": [
            "cosmetic"
          ],
          "name_orgs": [
            {
              "uuid": "2a0aab46-80e4-49b7-aa91-96739d680303",
              "name_org": "INCI"
            }
          ]
        },
        {
          "uuid": "5a5fceb1-720c-474f-9fd9-184ded9a9996",
          "name": "MERCAPTOPROPIONIC ACID, 3-",
          "stdName": "MERCAPTOPROPIONIC ACID, 3-",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "788652cf-42e7-4b49-a55f-a92f2146d2ff"
          ],
          "display_name": false
        },
        {
          "uuid": "3a4ed120-bd8e-4b72-b6c7-526c93e48067",
          "name": "NSC-437",
          "stdName": "NSC-437",
          "type": "cd",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "ece3569e-c54c-404d-b6b5-0e1a2abd67f1"
          ],
          "display_name": false
        },
        {
          "uuid": "8528820a-ada3-49e3-adc0-0ebef31d9c08",
          "name": "PROPANOIC ACID, 3-MERCAPTO-",
          "stdName": "PROPANOIC ACID, 3-MERCAPTO-",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "0566a3ad-c16b-4388-8c8e-80bd28456a74"
          ],
          "display_name": false
        },
        {
          "uuid": "d991bddd-a991-4f56-a63b-993d80fd5265",
          "name": "THIOHYDRACRYLIC ACID",
          "stdName": "THIOHYDRACRYLIC ACID",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
            "0566a3ad-c16b-4388-8c8e-80bd28456a74"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "788652cf-42e7-4b49-a55f-a92f2146d2ff",
          "citation": "ICSAS BATCH 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "0566a3ad-c16b-4388-8c8e-80bd28456a74",
          "citation": "JECFA",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "af8b0bf8-965e-456c-b3f7-f78a08d9c1cb",
          "citation": "JECFA: JOINT FAO/WHO COMMITTEE FOOD ADD",
          "doc_type": "JECFA: JOINT FAO/WHO COMMITTEE FOOD ADD",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "ece3569e-c54c-404d-b6b5-0e1a2abd67f1",
          "citation": "CHEMID",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "4f00d9fe-f19e-4722-bfe6-9c6ee35145e2",
          "citation": "http://www.ift.org/knowledge-center/focus-areas/product-development-and-ingredient-innovations/~/med",
          "url": "http://www.ift.org/knowledge-center/focus-areas/product-development-and-ingredient-innovations/~/med",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "9d3238e6-135b-4fda-96c8-23efc7140a40",
          "citation": "HSDB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "048f8b3c-e054-48cb-8d78-ec1142e85094",
          "citation": "PCPC-DB",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "82a10b94-6b5a-481e-9e80-fe7c50ec57fe",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390945000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "dc6b7049-afbc-42f5-9d42-8bf0ed2d746e",
          "citation": "SRS import [B03TJ3QU9M]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=B03TJ3QU9M",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390945000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "2f428afd-0147-45cf-a701-d993d8935d1a",
          "citation": "CHEMID 2010",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "7d82229e-f208-4e33-9132-9e38e13dc42d",
          "citation": "3-MERCAPTOPROPIONIC ACID [HSDB]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "f120e10e-9a74-47e0-a0f4-eec5f7c183eb",
          "citation": "MERCAPTOPROPIONIC ACID [INCI]",
          "doc_type": "SRS_LOCATOR",
          "public_domain": true
        },
        {
          "uuid": "e62e0665-3a1d-6c4a-5812-3baeecd9ab33",
          "citation": "WEBSITE",
          "url": "https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/r?dbs+hsdb:@term+@rn+@rel+107-96-0",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "d0056fdd-5361-6c52-e540-bdead35b0200",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=107-96-0",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "2ca24ee0-7c64-2961-ba46-bf72a853e006",
          "citation": "3-(tritylthio)propanoic acid",
          "url": "https://us.vwr.com/store/product/10710463/baceq-1740",
          "doc_type": "WEB PAGE",
          "public_domain": true,
          "tags": [
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "88128585-718b-ddf0-351b-6bbd9882f31a",
          "citation": "WIKI",
          "doc_type": "WIKI",
          "public_domain": true
        },
        {
          "uuid": "ddf4ec5b-3d29-46c4-8934-b21852c429a8",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "d392c233-b042-ede5-2ad4-a99814e58927",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "ad02965b-57d4-cc67-add7-8e60db442aef",
          "citation": "NCI",
          "doc_type": "NCI DRUG DICTIONARY",
          "public_domain": true
        },
        {
          "uuid": "c2fc006f-4d15-5d4f-d85b-fc476e367bf3",
          "citation": "JECFA",
          "doc_type": "JECFA",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "a19710fe-084d-4fdf-9914-385ea36afde4",
          "id": "a19710fe-084d-4fdf-9914-385ea36afde4",
          "molfile": "\n  Marvin  01132108242D          \n\n  6  5  0  0  0  0            999 V2000\n    5.9000   -5.2968    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9000   -4.4851    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1728   -4.0693    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6126   -4.0693    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3275   -4.4702    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0499   -4.0619    0.0000 S   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  5  6  1  0  0  0  0\nM  END",
          "smiles": "C(CS)C(=O)O",
          "formula": "C3H6O2S",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "36dd7300-0516-4b12-b603-498636e71f0f"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "106.1447",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "bf6b3200-e93e-48bb-9324-c8f28bc95e90",
      "version": "12",
      "structure": {
        "id": "9e1ddf8e-f310-4e79-9e28-c8662fe8ebe8",
        "molfile": "\n  Marvin  01132108132D          \n\n  6  5  0  0  0  0            999 V2000\n    6.6126   -4.0693    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9000   -4.4851    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.9000   -5.2968    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    5.1728   -4.0693    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3275   -4.4702    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0499   -4.0619    0.0000 S   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  2  4  2  0  0  0  0\n  1  5  1  0  0  0  0\n  5  6  1  0  0  0  0\nM  END",
        "smiles": "C(CS)C(=O)O",
        "formula": "C3H6O2S",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "106.1447",
        "optical_activity": "NONE",
        "references": [
          "2f428afd-0147-45cf-a701-d993d8935d1a",
          "dc6b7049-afbc-42f5-9d42-8bf0ed2d746e"
        ],
        "stereo_centers": 0
      },
      "unii": "B03TJ3QU9M"
    }
  ]
}