{
  "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": "24f43af5-848d-487d-859b-3e9d92d9f701",
          "code": "693-04-9",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=693-04-9",
          "code_system": "CAS",
          "references": [
            "b2788402-14f1-466d-a2b0-e4867995ba6d",
            "3a931628-2158-43b2-8c9b-5bc5b936568d"
          ]
        },
        {
          "uuid": "95c7b937-1554-410b-b2e8-30fcb4a89fdf",
          "code": "211-739-5",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.010.673",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "b2788402-14f1-466d-a2b0-e4867995ba6d"
          ]
        },
        {
          "uuid": "1b029781-a026-21f9-3b1b-ec5e12a7f0e8",
          "code": "DTXSID0074924",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID0074924",
          "code_system": "EPA CompTox",
          "references": [
            "c3b6eda7-efe4-80a3-55d7-03a46de617ab"
          ]
        },
        {
          "uuid": "2e4568b5-33db-4c83-b5aa-e05e24bfe394",
          "code": "4J83FGW852",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "f52d7a85-9b70-4a4e-a67f-5a893ad5f488",
          "name": "BUTYLCHLOROMAGNESIUM",
          "stdName": "BUTYLCHLOROMAGNESIUM",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5c55c141-d944-4f9d-892a-84400d8b7e28",
            "2381e18b-bc2a-48dc-a6a2-09c3c2f00c45"
          ],
          "display_name": false
        },
        {
          "uuid": "5c4cfa13-9808-436f-ab4c-8790faf47409",
          "name": "BUTYLMAGNESIUM CHLORIDE",
          "stdName": "BUTYLMAGNESIUM CHLORIDE",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "f4af5418-b2bf-4d44-b1cb-9d2276919d49"
          ],
          "display_name": true
        },
        {
          "uuid": "3bb3cdd1-b8f2-4c37-89e8-b80236f0353c",
          "name": "MAGNESIUM, BUTYLCHLORO-",
          "stdName": "MAGNESIUM, BUTYLCHLORO-",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5c55c141-d944-4f9d-892a-84400d8b7e28",
            "2381e18b-bc2a-48dc-a6a2-09c3c2f00c45"
          ],
          "display_name": false
        },
        {
          "uuid": "a0313360-e8f5-4436-b77f-118a73520060",
          "name": "N-BUTYLMAGNESIUM CHLORIDE",
          "stdName": "N-BUTYLMAGNESIUM CHLORIDE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "5c55c141-d944-4f9d-892a-84400d8b7e28",
            "2381e18b-bc2a-48dc-a6a2-09c3c2f00c45"
          ],
          "display_name": false
        }
      ],
      "references": [
        {
          "uuid": "f4af5418-b2bf-4d44-b1cb-9d2276919d49",
          "citation": "CHEMID 2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "2381e18b-bc2a-48dc-a6a2-09c3c2f00c45",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "5c55c141-d944-4f9d-892a-84400d8b7e28",
          "citation": "STN (SCIFINDER)",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "b2788402-14f1-466d-a2b0-e4867995ba6d",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390995000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "f67f30dd-4260-4e8a-b9d8-0786285c4bed",
          "citation": "SRS import [4J83FGW852]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=4J83FGW852",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493390995000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "736a7992-faa3-4778-a4bf-c2cdd3bb0455",
          "citation": "CHEMID  2011",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "c3b6eda7-efe4-80a3-55d7-03a46de617ab",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=693-04-9",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "3a931628-2158-43b2-8c9b-5bc5b936568d",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "08237222-7cfb-4225-ac63-584a7dcdc0f3",
          "id": "08237222-7cfb-4225-ac63-584a7dcdc0f3",
          "molfile": "\n  Marvin  01132100422D          \n\n  1  0  0  0  0  0            999 V2000\n   11.8546   -4.3072    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0\nM  END",
          "smiles": "Cl",
          "formula": "ClH",
          "atropisomerism": "No",
          "charge": 0,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "5ce5c96d-be97-426e-8ada-d84ad013c580"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "36.4609",
          "optical_activity": "NONE",
          "stereo_centers": 0
        },
        {
          "uuid": "54cb0e2e-f4cc-4c4f-96cc-586cef5e0e75",
          "id": "54cb0e2e-f4cc-4c4f-96cc-586cef5e0e75",
          "molfile": "\n  Marvin  01132104252D          \n\n  5  4  0  0  0  0            999 V2000\n    6.7365   -4.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.4484   -4.4169    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.1604   -4.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.8657   -4.4169    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.8217   -3.9931    0.0000 Mg  0  3  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  3  4  1  0  0  0  0\n  4  5  1  0  0  0  0\nM  CHG  1   5   1\nM  END",
          "smiles": "CCCC[Mg+]",
          "formula": "C4H9Mg",
          "atropisomerism": "No",
          "charge": 1,
          "count": 1,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "38661dd2-893f-4922-8cde-c20062766c79"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "81.4195",
          "optical_activity": "NONE",
          "stereo_centers": 0
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "ac0369f8-76ef-4ba9-bf56-380a9d409f62",
      "version": "3",
      "structure": {
        "id": "6413d267-d488-4f80-bcdf-574994d5c625",
        "molfile": "\n  Marvin  01132105122D          \n\n  6  4  0  0  0  0            999 V2000\n    8.8657   -4.4169    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.8217   -3.9931    0.0000 Mg  0  3  0  0  0  0  0  0  0  0  0  0\n    8.1604   -4.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.4484   -4.4169    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.7365   -4.0000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   11.8546   -4.3072    0.0000 Cl  0  5  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  3  1  1  0  0  0  0\n  4  3  1  0  0  0  0\n  5  4  1  0  0  0  0\nM  CHG  2   2   1   6  -1\nM  END",
        "smiles": "CCCC[Mg+].[Cl-]",
        "formula": "C4H9Mg.Cl",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "116.8724",
        "optical_activity": "NONE",
        "references": [
          "f67f30dd-4260-4e8a-b9d8-0786285c4bed",
          "736a7992-faa3-4778-a4bf-c2cdd3bb0455"
        ],
        "stereo_centers": 0
      },
      "unii": "4J83FGW852"
    }
  ]
}