{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/dehydroacetic-acid",
  "slug": "dehydroacetic-acid",
  "name": "Dehydroacetic acid",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": null,
    "inchikey": "PGRHXDWITVMQBC-UHFFFAOYSA-N",
    "pubchem_cid": 122903
  },
  "functional_class": null,
  "summary": "Dehydroacetic acid and its sodium salt are preservatives permitted in the United States for cut or peeled squash. It is a narrow listing: one food, one purpose.",
  "derivation_summary": "Produced by chemical synthesis from acetic acid derivatives.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "status": "permitted_with_conditions",
      "status_label": "Permitted, with conditions",
      "provision_count": 1,
      "provisions": [
        {
          "status": "permitted_with_conditions",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 172.130",
            "url": "https://www.ecfr.gov/current/title-21/section-172.130"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        }
      ]
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "not_listed",
      "status_label": "Not listed",
      "note": "Does not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.",
      "provision_count": 0,
      "provisions": []
    }
  ],
  "names": [
    {
      "name": "16807-48-0",
      "type": "cas",
      "source": "pubchem"
    },
    {
      "name": "520-45-6",
      "type": "cas",
      "source": "pubchem"
    },
    {
      "name": "2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid, .delta.-lactone",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "2H-Pyran-2, 3-acetyl-6-methyl-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-methyl-2,3-dihydropyran-2,4-dione",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-methyl-2,4(3H)-pyrandione",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-acetyl-6-methyl-2,4-dioxo-3H-pyran",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-methyl-2,4-pyrandione",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, enol form",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, ion(1-)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-acetyl-6-methyl-3,4-dihydro-2H-pyran-2,4-dione",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-acetyl-6-methyl-3H-pyran-2,4-dione",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-methyl-pyran-2,4-dione",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-Methyldihydropyrandione-2,4(3H)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-acetyl-6-methylpyran-2,4-dione",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "3-Acetyl-6-methylpyrandione-2,4",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "4-Hexenoic acid, .delta.-lactone",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "4-Hexenoic acid, 2-acetyl-5-hydroxy-3-oxo-, .delta.-lactone",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acetic acid, dehydro-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Biocide 470F",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CAS-520-45-6",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "DEHYDROACETIC ACID",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dehydroacetic acid (Standard)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dehydroacetic acid 1000 microg/mL in Ethyl acetate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dehydroacetic acid, >=98.0% (T)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dehydroacetic acid, Pharmaceutical Secondary Standard; Certified Reference Material",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dehydroacetic acid, United States Pharmacopeia (USP) Reference Standard",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Epitope ID:613424",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "InChI=1/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,7H,1-2H3",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Methylacetopyronone",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "PGRHXDWITVMQBC-UHFFFAOYSA-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "WLN: T6OV DV CHJ CV1 F1",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dehydroacetic acid",
      "type": "label",
      "source": "ecfr"
    }
  ],
  "hazard_reference_values": [],
  "sources": [
    {
      "key": "ecfr",
      "name": "Electronic Code of Federal Regulations, Title 21",
      "publisher": "U.S. Government Publishing Office / National Archives",
      "licence": "Public domain",
      "url": "https://www.ecfr.gov/api/versioner/v1/full/2026-08-31/title-21.xml",
      "retrieved_at": "2026-09-07T18:25:51.549Z"
    }
  ],
  "citation_policy": "Cite as: Food Additive Index, \"Dehydroacetic acid\", https://foodadditiveindex.com/additives/dehydroacetic-acid. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.498Z"
}