{
  "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": "a35c7db8-864f-4664-9499-b2cb87655bb6",
          "code": "3401-73-8",
          "type": "PRIMARY",
          "url": "https://commonchemistry.cas.org/detail?cas_rn=3401-73-8",
          "code_system": "CAS",
          "references": [
            "03240a2b-ca84-4126-aa9d-c0a0a06d3dc3",
            "08214f27-96da-4aa9-aae1-7f89f278a145"
          ]
        },
        {
          "uuid": "b9c403a1-ae0a-41d9-9c32-208dae036b36",
          "code": "222-273-7",
          "type": "PRIMARY",
          "url": "https://echa.europa.eu/substance-information/-/substanceinfo/100.020.249",
          "code_system": "ECHA (EC/EINECS)",
          "references": [
            "03240a2b-ca84-4126-aa9d-c0a0a06d3dc3"
          ]
        },
        {
          "uuid": "392248f7-95ad-0d6e-f4cb-bbc1ab91ab7d",
          "code": "23617992",
          "type": "PRIMARY",
          "url": "https://pubchem.ncbi.nlm.nih.gov/compound/23617992",
          "code_system": "PUBCHEM",
          "references": [
            "870f7ce8-ac72-ee14-ea47-431ff4ae2ff0"
          ]
        },
        {
          "uuid": "4807d36b-110c-b7e4-ea25-44ad84192902",
          "code": "DTXSID4042464",
          "type": "PRIMARY",
          "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID4042464",
          "code_system": "EPA CompTox",
          "references": [
            "483080cd-04ed-a969-8b52-e53f388153c7"
          ]
        },
        {
          "uuid": "c680b702-5c0f-4637-af89-35cc89ac7a57",
          "code": "84KT84Y3KM",
          "type": "PRIMARY",
          "code_system": "FDA UNII"
        }
      ],
      "substance_class": "chemical",
      "names": [
        {
          "uuid": "34f6c6a4-5e59-4c54-ac8b-f904f63afd5e",
          "name": "L-ASPARTIC ACID, N-(3-CARBOXY-1-OXO-2-SULFOPROPYL)-N-OCTADECYL-, SODIUM SALT (1:4)",
          "stdName": "L-ASPARTIC ACID, N-(3-CARBOXY-1-OXO-2-SULFOPROPYL)-N-OCTADECYL-, SODIUM SALT (1:4)",
          "type": "sys",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "b6843ce6-2843-4534-881d-989f7957654f"
          ],
          "display_name": false
        },
        {
          "uuid": "ede484a3-8c05-4738-b52e-83f0720b84b4",
          "name": "TETRASODIUM N-(1,2-DICARBOXYETHYL)-N-OCTADECYL, S-",
          "stdName": "TETRASODIUM N-(1,2-DICARBOXYETHYL)-N-OCTADECYL, S-",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "be4b91e0-5d3c-4fea-805a-c3eb7e9e2b6e"
          ],
          "display_name": false
        },
        {
          "uuid": "3bad6ab0-84ea-46e0-996b-dc2ff33121c7",
          "name": "TETRASODIUM N-(3-CARBOXY-1-OXO-2-SULFOPROPYL)-N-OCTADECYLASPARTATE",
          "stdName": "TETRASODIUM N-(3-CARBOXY-1-OXO-2-SULFOPROPYL)-N-OCTADECYLASPARTATE",
          "type": "cn",
          "languages": [
            "en"
          ],
          "preferred": false,
          "references": [
            "dd40b840-37c6-461f-8dea-7939b721cd91"
          ],
          "display_name": true
        }
      ],
      "references": [
        {
          "uuid": "be4b91e0-5d3c-4fea-805a-c3eb7e9e2b6e",
          "citation": "fda_srs",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE",
            "AUTO_SELECTED"
          ]
        },
        {
          "uuid": "b6843ce6-2843-4534-881d-989f7957654f",
          "citation": "STN",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "dd40b840-37c6-461f-8dea-7939b721cd91",
          "citation": "FDA_SRS",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "03240a2b-ca84-4126-aa9d-c0a0a06d3dc3",
          "citation": "SRS CODE IMPORT",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391523000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "07bc4ce1-6882-4574-aa95-bfc9b45ed260",
          "citation": "SRS import [84KT84Y3KM]",
          "url": "http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=84KT84Y3KM",
          "doc_type": "SRS",
          "public_domain": true,
          "document_date": 1493391523000,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "34c9769b-27f8-40c6-9808-0f59d09f5830",
          "citation": "http://www.fitzchem.com/pdf/CY22_DS1.pdf",
          "url": "http://www.fitzchem.com/pdf/CY22_DS1.pdf",
          "doc_type": "SRS",
          "public_domain": true,
          "tags": [
            "NOMEN"
          ]
        },
        {
          "uuid": "483080cd-04ed-a969-8b52-e53f388153c7",
          "citation": "WEBSITE",
          "url": "https://comptox.epa.gov/dashboard/dsstoxdb/results?utf8=%E2%9C%93&search=3401-73-8",
          "doc_type": "WEBSITE",
          "public_domain": true,
          "tags": [
            "NOMEN",
            "PUBLIC_DOMAIN_RELEASE"
          ]
        },
        {
          "uuid": "870f7ce8-ac72-ee14-ea47-431ff4ae2ff0",
          "citation": "PUBCHEM",
          "doc_type": "PUBCHEM",
          "public_domain": true
        },
        {
          "uuid": "08214f27-96da-4aa9-aae1-7f89f278a145",
          "citation": "STN",
          "doc_type": "STN (SCIFINDER)",
          "public_domain": true
        }
      ],
      "definition_type": "PRIMARY",
      "moieties": [
        {
          "uuid": "1038f0c0-bbae-452a-9dc2-b46ae0e6dfc0",
          "id": "1038f0c0-bbae-452a-9dc2-b46ae0e6dfc0",
          "molfile": "\n  Marvin  01132101042D          \n\n  1  0  0  0  1  0            999 V2000\n    5.9339   -0.1122    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\nM  CHG  1   1   1\nM  END",
          "smiles": "[Na+]",
          "formula": "Na",
          "atropisomerism": "No",
          "charge": 1,
          "count": 4,
          "stereochemistry": "ACHIRAL",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 4,
            "units": "MOL RATIO",
            "uuid": "4fc7ead7-8529-4f49-92cd-4ac9813fec32"
          },
          "defined_stereo": 0,
          "ez_centers": 0,
          "molecular_weight": "22.9898",
          "optical_activity": "NONE",
          "stereo_centers": 0
        },
        {
          "uuid": "aeead18f-5712-4082-9ef6-d425a61cfa3e",
          "id": "aeead18f-5712-4082-9ef6-d425a61cfa3e",
          "molfile": "\n  Marvin  01132109042D          \n\n 38 37  0  0  1  0            999 V2000\n    8.6954   -3.9285    0.0000 C   0  0  2  0  0  0  0  0  0  2  0  0\n    9.3803   -4.3848    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.3255   -5.2068    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.0150   -5.6631    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    8.5905   -5.5724    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7501   -3.1019    0.0000 N   0  0  2  0  0  0  0  0  0  0  0  0\n    8.0606   -2.6455    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3209   -3.0111    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6361   -2.5547    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8965   -2.9203    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.2069   -2.4640    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4719   -2.8295    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.7825   -2.3732    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.0427   -2.7388    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.3579   -2.2778    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.6183   -2.6434    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.9333   -2.1869    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.1938   -2.5525    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.4911   -2.0962    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.2309   -2.4618    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.9203   -2.0055    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.6599   -2.3711    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -3.3449   -1.9145    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -4.0805   -2.2801    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4897   -2.7363    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.1746   -3.1973    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    9.5399   -1.9144    0.0000 C   0  0  0  0  0  0  0  0  0  3  0  0\n   10.2794   -1.5488    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.3342   -0.7267    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.6448   -0.2704    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n   10.9660   -0.3612    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7483   -1.4971    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0227   -1.8934    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    8.3520   -0.7715    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4440   -0.9373    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    7.9557   -4.2941    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3710   -3.7094    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    7.9010   -5.1160    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  1  6  1  1  0  0  0\n  1 36  1  0  0  0  0\n  2  3  1  0  0  0  0\n  3  4  1  0  0  0  0\n  3  5  2  0  0  0  0\n  6  7  1  0  0  0  0\n 25  6  1  0  0  0  0\n  7  8  1  0  0  0  0\n  8  9  1  0  0  0  0\n  9 10  1  0  0  0  0\n 10 11  1  0  0  0  0\n 11 12  1  0  0  0  0\n 12 13  1  0  0  0  0\n 13 14  1  0  0  0  0\n 14 15  1  0  0  0  0\n 15 16  1  0  0  0  0\n 16 17  1  0  0  0  0\n 17 18  1  0  0  0  0\n 18 19  1  0  0  0  0\n 19 20  1  0  0  0  0\n 20 21  1  0  0  0  0\n 21 22  1  0  0  0  0\n 22 23  1  0  0  0  0\n 23 24  1  0  0  0  0\n 25 26  2  0  0  0  0\n 27 25  1  0  0  0  0\n 28 27  1  0  0  0  0\n 32 27  1  0  0  0  0\n 29 28  1  0  0  0  0\n 29 30  1  0  0  0  0\n 29 31  2  0  0  0  0\n 32 33  1  0  0  0  0\n 32 34  2  0  0  0  0\n 32 35  2  0  0  0  0\n 36 37  1  0  0  0  0\n 36 38  2  0  0  0  0\nM  CHG  4   4  -1  30  -1  33  -1  37  -1\nM  END",
          "smiles": "CCCCCCCCCCCCCCCCCCN([C@@H](CC(=O)[O-])C(=O)[O-])C(=O)C(CC(=O)[O-])S(=O)(=O)[O-]",
          "formula": "C26H43NO10S",
          "atropisomerism": "No",
          "charge": -4,
          "count": 1,
          "stereochemistry": "EPIMERIC",
          "count_amount": {
            "type": "MOL RATIO",
            "average": 1,
            "units": "MOL RATIO",
            "uuid": "e3b96a6a-2293-451e-861b-b7b07d0e40fc"
          },
          "defined_stereo": 1,
          "ez_centers": 0,
          "molecular_weight": "561.6874",
          "optical_activity": "UNSPECIFIED",
          "stereo_centers": 2
        }
      ],
      "definition_level": "COMPLETE",
      "uuid": "6093da76-7b64-4386-8412-b1c09c6aacea",
      "version": "7",
      "structure": {
        "id": "85292952-4bbf-426b-a797-f60edf6eb0d6",
        "molfile": "\n  Marvin  01132106552D          \n\n 42 37  0  0  1  0            999 V2000\n   -4.0805   -2.2801    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -3.3449   -1.9145    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -2.6599   -2.3711    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.9203   -2.0055    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -1.2309   -2.4618    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   -0.4911   -2.0962    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.1938   -2.5525    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    0.9333   -2.1869    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    1.6183   -2.6434    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    2.3579   -2.2778    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.0427   -2.7388    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    3.7825   -2.3732    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    4.4719   -2.8295    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.2069   -2.4640    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    5.8965   -2.9203    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    6.6361   -2.5547    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3209   -3.0111    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0606   -2.6455    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    8.7501   -3.1019    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0\n    8.6954   -3.9285    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0\n    7.9557   -4.2941    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    7.3710   -3.7094    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    7.9010   -5.1160    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    9.3803   -4.3848    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.3255   -5.2068    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.0150   -5.6631    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.5905   -5.5724    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    9.4897   -2.7363    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.1746   -3.1973    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    9.5399   -1.9144    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.2794   -1.5488    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n   10.3342   -0.7267    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0\n    9.6448   -0.2704    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n   10.9660   -0.3612    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    8.7483   -1.4971    0.0000 S   0  0  0  0  0  0  0  0  0  0  0  0\n    8.3520   -0.7715    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    9.4440   -0.9373    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0\n    8.0227   -1.8934    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    5.9339   -0.1122    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\n    5.9339   -0.1122    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\n    5.9339   -0.1122    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\n    5.9339   -0.1122    0.0000 Na  0  3  0  0  0  0  0  0  0  0  0  0\n  5  4  1  0  0  0  0\n  6  5  1  0  0  0  0\n  7  6  1  0  0  0  0\n  8  7  1  0  0  0  0\n  9  8  1  0  0  0  0\n 10  9  1  0  0  0  0\n 11 10  1  0  0  0  0\n 12 11  1  0  0  0  0\n 13 12  1  0  0  0  0\n 14 13  1  0  0  0  0\n 15 14  1  0  0  0  0\n 16 15  1  0  0  0  0\n 17 16  1  0  0  0  0\n 18 17  1  0  0  0  0\n 19 18  1  0  0  0  0\n 20 19  1  0  0  0  0\n 20 21  1  0  0  0  0\n 21 22  1  0  0  0  0\n 21 23  2  0  0  0  0\n 20 24  1  1  0  0  0\n 24 25  1  0  0  0  0\n 25 26  2  0  0  0  0\n 25 27  1  0  0  0  0\n 28 19  1  0  0  0  0\n 28 29  2  0  0  0  0\n 30 28  1  0  0  0  0\n 31 30  1  0  0  0  0\n 32 31  1  0  0  0  0\n 32 33  2  0  0  0  0\n 32 34  1  0  0  0  0\n 35 30  1  0  0  0  0\n 35 36  2  0  0  0  0\n 35 37  2  0  0  0  0\n 35 38  1  0  0  0  0\n  2  1  1  0  0  0  0\n  3  2  1  0  0  0  0\n  4  3  1  0  0  0  0\nM  CHG  8  22  -1  27  -1  34  -1  38  -1  39   1  40   1  41   1  42   1\nM  STY  1   1 MUL\nM  SCN  1   1 HT \nM  SAL   1  4  39  40  41  42\nM  SPA   1  1  39\nM  SDI   1  4    5.5139   -0.5322    5.5139    0.3078\nM  SDI   1  4    6.3539    0.3078    6.3539   -0.5322\nM  SMT   1 4\nM  END",
        "smiles": "CCCCCCCCCCCCCCCCCCN([C@@H](CC(=O)[O-])C(=O)[O-])C(=O)C(CC(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]",
        "formula": "C26H43NO10S.4Na",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "EPIMERIC",
        "defined_stereo": 1,
        "ez_centers": 0,
        "molecular_weight": "653.6465",
        "optical_activity": "UNSPECIFIED",
        "references": [
          "07bc4ce1-6882-4574-aa95-bfc9b45ed260",
          "34c9769b-27f8-40c6-9808-0f59d09f5830"
        ],
        "stereo_centers": 2
      },
      "unii": "84KT84Y3KM"
    }
  ]
}