{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/adipic-acid",
  "slug": "adipic-acid",
  "name": "Adipic acid",
  "identifiers": {
    "e_number": "E355",
    "ins_number": "355",
    "cas_number": "00124-04-9",
    "inchikey": null,
    "pubchem_cid": null
  },
  "functional_class": "Acidity regulator",
  "summary": "Adipic acid is an acidity regulator used in drink powders, gelatin desserts and bakery fillings, where its low hygroscopicity keeps powders free-flowing.",
  "derivation_summary": "Produced industrially by oxidising cyclohexane, a petroleum feedstock. Most adipic acid made in the world goes into nylon rather than food.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "status": "permitted",
      "status_label": "Permitted",
      "provision_count": 1,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 184.1009",
            "url": "https://www.ecfr.gov/current/title-21/section-184.1009"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        }
      ]
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "permitted_with_conditions",
      "status_label": "Permitted, with conditions",
      "provision_count": 3,
      "provisions": [
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "01.1.4",
            "name": "Flavoured Fluid Milk Drinks"
          },
          "max_level": 1500,
          "max_level_unit": "mg/kg",
          "conditions": "GSFA notes: 1, 634",
          "effective_from": "2024",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 355, food category 01.1.4",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "01.2.1.2",
            "name": "Fermented milks (plain), heat-treated after fermentation"
          },
          "max_level": 1500,
          "max_level_unit": "mg/kg",
          "conditions": "GSFA notes: 1",
          "effective_from": "2016",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 355, food category 01.2.1.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "01.7",
            "name": "Dairy-based desserts (e.g. pudding, fruit or flavoured yoghurt)"
          },
          "max_level": 1500,
          "max_level_unit": "mg/kg",
          "conditions": "GSFA notes: 1 & 634",
          "effective_from": "2024",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 355, food category 01.7",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        }
      ]
    }
  ],
  "names": [
    {
      "name": "00124-04-9",
      "type": "cas",
      "source": "ecfr"
    },
    {
      "name": "124-04-9",
      "type": "cas",
      "source": "openfoodtox"
    },
    {
      "name": "1,4-butanedicarboxylic acid",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "ADIPATES",
      "type": "common",
      "source": "gsfa"
    },
    {
      "name": "Adipic acid",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "E 355",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Hexanedioic acid",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "E355",
      "type": "e_number",
      "source": "openfoodtox"
    },
    {
      "name": "355",
      "type": "ins",
      "source": "gsfa"
    },
    {
      "name": "adipic acid",
      "type": "iupac",
      "source": "openfoodtox"
    },
    {
      "name": "Adipic 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"
    },
    {
      "key": "gsfa",
      "name": "Codex General Standard for Food Additives (CXS 192-1995)",
      "publisher": "Codex Alimentarius Commission (FAO/WHO)",
      "licence": "FAO terms — non-commercial use with attribution",
      "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/",
      "retrieved_at": "2026-09-07T07:54:15.059Z"
    }
  ],
  "citation_policy": "Cite as: Food Additive Index, \"Adipic acid\", https://foodadditiveindex.com/additives/adipic-acid. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.396Z"
}