{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/ethoxyquin",
  "slug": "ethoxyquin",
  "name": "Ethoxyquin",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": "91-53-2",
    "inchikey": "DECIPOUIJURFOJ-UHFFFAOYSA-N",
    "pubchem_cid": 3293
  },
  "functional_class": null,
  "summary": "Ethoxyquin is an antioxidant permitted in the United States for chilli powder, paprika and ground chilli, where it protects the colour. It is far better known as an antioxidant in animal feed and fish meal, and its food uses are narrow.",
  "derivation_summary": "Produced by chemical synthesis from aniline 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 172.140",
            "url": "https://www.ecfr.gov/current/title-21/section-172.140"
          },
          "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": "91-53-2",
      "type": "cas",
      "source": "openfoodtox"
    },
    {
      "name": "1,2,4-trimethyl-6-ethoxyquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "1,2-Dihydro-2,2,4-trimethyl-6-ethoxyquinoline",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "1,2-DIHYDRO-2,2,4-TRIMETHYLQUINOLIN-6-YL ETHYL ETHER",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "1,2-Dihydro-6-ethoxy-2,2,4-trimethylquin oline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "1,2-Dihydro-6-ethoxy-2,2,4-trimethylquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "2,2,4-Trimethyl-6-ethoxy-1,2-dihydroquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "2,4-Trimethyl-6-ethoxy-1,2-dihydroquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-(ethyloxy)-2,2,4-trimethyl-1,2-dihydroquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-Ethoxy-1,2,4-trimethylquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-Ethoxy-1,2-dihydro-2,2,4-trimethyl-Quinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-Ethoxy-1,2-dihydro-2,2,4-trimethylquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-Ethoxy-1,2-dihydro-2,2,4-trimethylquinoline, 9CI, 8CI",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-Ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-ethoxy-2,2,4-trimethyl-1H-quinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-Ethoxy-2,4-trimethyl-1,2-dihydroquinoline",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "6-ETMDQ",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Alterungsschutzmittel EC",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Amea 100",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Antage AW",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Antioxidant EC",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Aries Antox",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CAS-91-53-2",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Caswell No. 427D",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CCRIS 2513",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dawe's nutrigard",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "EMQ",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "EPA Pesticide Chemical Code 055501",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ethoxychin",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ethoxyquin",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Ethoxyquin (Standard)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ethoxyquin, >=75% (capillary GC)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ethoxyquin, PESTANAL(R), analytical standard",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ethoxyquin, Vetec(TM) reagent grade, 75%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ethoxyquine",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ethyl 2,2,4-trimethyl-1,2-dihydro-6-quinolinyl ether",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ethyl 2,2,4-trimethyl-1,2-dihydro-6-quinolinyl ether #",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HMS500J05",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HSDB 400",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Niflex",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Niflex D",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Nix-Scald",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Nocrac AW",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Nocrack AW",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Permanax 103",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Quinol ED",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Quinoline, 6-ethoxy-1,2-dihydro-2,2,4-trimethyl-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Santoflex",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Santoflex A",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Santoflex AW",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Santoquin",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Santoquine",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Santoquine (VAN)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "SantoquinEQ",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Stop-Scald",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Usaf B-24",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "WLN: T66 BM CHJ C1 C1 E1 HO2",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "E0237",
      "type": "e_number",
      "source": "pubchem"
    },
    {
      "name": "E324",
      "type": "e_number",
      "source": "pubchem"
    },
    {
      "name": "E7329",
      "type": "e_number",
      "source": "pubchem"
    },
    {
      "name": "6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline",
      "type": "iupac",
      "source": "openfoodtox"
    },
    {
      "name": "Ethoxyquin",
      "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, \"Ethoxyquin\", https://foodadditiveindex.com/additives/ethoxyquin. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.525Z"
}