{
  "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": "2026-09-09",
    "results": {
      "skip": 0,
      "limit": 1,
      "total": 1
    }
  },
  "results": [
    {
      "codes": [
        {
          "uuid": "9146aae3-77b3-3ea5-6b3a-7516f9ccd0bf",
          "code": "23668518",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/23668518",
          "code_system": "PUBCHEM",
          "references": [
            "856f30d8-1058-bc20-e0e6-547bb4d4bb54"
          ]
        },
        {
          "uuid": "fbd568d2-cf73-4b77-a7f7-08ad38ff121e",
          "code": "39650-04-9",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=39650-04-9",
          "code_system": "CAS",
          "references": [
            "8dd92de1-deaa-46f1-be59-cfbdc5c8bc5a"
          ]
        },
        {
          "uuid": "8a610f2e-ab20-dab2-03ef-7d46a23a8cd7",
          "code": "3766 (Number of products:2)",
          "comments": "Dietary Supplement Label Database|chemical|Potassium Beta-Hydroxybutyrate",
          "type": "PRIMARY",
          "url": "https://dsld.od.nih.gov/dsld/rptIngredient.jsp?grpid=3766&item=Potassium Beta-Hydroxybutyrate",
          "code_system": "DSLD",
          "references": [
            "7edd8fe0-8a17-b8d7-ffcf-3b642db7fe70"
          ]
        },
        {
          "uuid": "01077d53-37a2-442b-acce-3bed53c4d3da",
          "code": "3IEF1Q0CVC",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        }
      ],
      "relationships": [
        {
          "uuid": "bb8f729d-20fb-4a09-89cf-7bb277092a21",
          "amount": {
            "uuid": "1a24d6b1-24a8-4c58-a550-38f15011fc8e"
          },
          "type": "PARENT->SALT/SOLVATE",
          "references": [
            "307b1705-747b-4330-b2a6-84c4324b7b53"
          ],
          "related_substance": {
            "uuid": "51aec176-c185-45f1-8801-9ba7419f211c",
            "refuuid": "6cde0e9e-fe4d-4f06-8221-7d50f35d2334",
            "name": "3-HYDROXYBUTYRIC ACID, (±)-",
            "unii": "TZP1275679",
            "linking_id": "TZP1275679",
            "ref_pname": "3-HYDROXYBUTYRIC ACID, (±)-",
            "substance_class": "reference"
          }
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "15a6f26a-4a97-ddb5-e106-f01dd4d2bdda",
          "name": "BUTANOIC ACID, 3-HYDROXY-, POTASSIUM SALT (1:1)",
          "stdName": "BUTANOIC ACID, 3-HYDROXY-, POTASSIUM SALT (1:1)",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "95ae2f5b-212f-72b6-120f-e1e561315e55"
          ],
          "display_name": false
        },
        {
          "uuid": "94eeb22d-2663-b0e5-cd9b-930ffabb927e",
          "name": "POTASSIUM 3-HYDROXYBUTYRATE",
          "stdName": "POTASSIUM 3-HYDROXYBUTYRATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "95ae2f5b-212f-72b6-120f-e1e561315e55"
          ],
          "display_name": true
        },
        {
          "uuid": "2cca5787-4a38-69d3-5205-c4af9dbdb853",
          "name": "POTASSIUM BETA-HYDROXYBUTYRIC ACID",
          "stdName": "POTASSIUM BETA-HYDROXYBUTYRIC ACID",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "95ae2f5b-212f-72b6-120f-e1e561315e55"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "7edd8fe0-8a17-b8d7-ffcf-3b642db7fe70",
          "doc_type": "SYSTEM",
          "public_domain": true
        },
        {
          "uuid": "856f30d8-1058-bc20-e0e6-547bb4d4bb54",
          "citation": "PUBCHEM",
          "doc_type": "PUBCHEM",
          "public_domain": true
        },
        {
          "uuid": "95ae2f5b-212f-72b6-120f-e1e561315e55",
          "citation": "stn",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "caac1c83-08e0-d8fa-eaa4-597c7e6d856f",
          "citation": "SRS import [19AN4ZH292]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=19AN4ZH292",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493389677000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "8dd92de1-deaa-46f1-be59-cfbdc5c8bc5a",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        },
        {
          "uuid": "307b1705-747b-4330-b2a6-84c4324b7b53",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "2e34f53c-14b2-1cbf-8a55-0ae423465d66",
          "id": "2e34f53c-14b2-1cbf-8a55-0ae423465d66",
          "molfile": "\n  Marvin  01132102292D          \n\n  7  6  0  0  0  0            999 V2000\n   15.3729   -4.3105    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   14.6657   -4.7218    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   16.1247   -4.6903    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n   15.3887   -3.4722    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   13.9505   -4.3105    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   13.9505   -3.4800    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   13.2327   -4.7218    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n  2  1  1  0  0  0  0\n  3  1  1  0  0  0  0\n  4  1  2  0  0  0  0\n  5  2  1  0  0  0  0\n  6  5  1  0  0  0  0\n  7  5  1  0  0  0  0\nM  CHG  1   3  -1\nM  END",
          "smiles": "CC(CC(=O)[O-])O",
          "formula": "C4H7O3",
          "atropisomerism": "No",
          "charge": -1,
          "count": 1,
          "stereochemistry": "RACEMIC",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "07579b17-736e-4f09-933b-23e229032964"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "103.0967",
          "optical_activity": "( + / - )",
          "stereo_centers": 1
        },
        {
          "uuid": "d71ef8df-d716-8dd0-cd3d-87d1355804f9",
          "id": "d71ef8df-d716-8dd0-cd3d-87d1355804f9",
          "molfile": "\n  Marvin  01132111092D          \n\n  1  0  0  0  0  0            999 V2000\n   18.1873   -4.3277    0.0000 K   0  3  0  0  0  0  0  0  0  0  0  0\nM  CHG  1   1   1\nM  END",
          "smiles": "[K+]",
          "formula": "K",
          "atropisomerism": "No",
          "charge": 1,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "54c27c70-6b29-46c4-b863-8c62149b6571"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "39.0983",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "e11a158e-5b94-e02d-0da6-3757c54a3e2c",
      "version": "10",
      "structure": {
        "id": "ee541221-7604-c73c-72e7-e9c3d16c1aaa",
        "molfile": "\n  Marvin  01132112202D          \n\n  8  6  0  0  0  0            999 V2000\n   15.3729   -4.3105    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   14.6657   -4.7218    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   16.1247   -4.6903    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n   15.3887   -3.4722    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   13.9505   -4.3105    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   13.9505   -3.4800    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   13.2327   -4.7218    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   18.1873   -4.3277    0.0000 K   0  3  0  0  0  0  0  0  0  0  0  0\n  2  1  1  0  0  0  0\n  3  1  1  0  0  0  0\n  4  1  2  0  0  0  0\n  5  2  1  0  0  0  0\n  6  5  1  0  0  0  0\n  7  5  1  0  0  0  0\nM  CHG  2   3  -1   8   1\nM  END",
        "smiles": "CC(CC(=O)[O-])O.[K+]",
        "formula": "C4H7O3.K",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "RACEMIC",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "142.195",
        "optical_activity": "( + / - )",
        "references": [
          "caac1c83-08e0-d8fa-eaa4-597c7e6d856f",
          "95ae2f5b-212f-72b6-120f-e1e561315e55"
        ],
        "stereo_centers": 1
      },
      "unii": "3IEF1Q0CVC"
    }
  ]
}