{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/monochloroacetic-acid",
  "slug": "monochloroacetic-acid",
  "name": "Monochloroacetic acid",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": null,
    "inchikey": "FOCAUTSVDIKZOP-UHFFFAOYSA-N",
    "pubchem_cid": 300
  },
  "functional_class": null,
  "summary": "Monochloroacetic acid was formerly used as a preservative. It is prohibited from use in human food in the United States.",
  "derivation_summary": "Produced industrially by chlorinating acetic acid. It remains an important industrial chemical intermediate outside food use.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "status": "prohibited",
      "status_label": "Prohibited",
      "provision_count": 1,
      "provisions": [
        {
          "status": "prohibited",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 189.155",
            "url": "https://www.ecfr.gov/current/title-21/section-189.155"
          },
          "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": "79-11-8",
      "type": "cas",
      "source": "pubchem"
    },
    {
      "name": ".alpha.-Chloroacetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "2-chloro-acetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "2-chloro-ethanoic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "2-chloroacetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "4-02-00-00474 (Beilstein Handbook Reference)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acetic acid, 2-chloro-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acetic acid, chloro-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acetocaustin",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acetocaustin (TN)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acide chloracetique",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acide chloroacetique",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acide monochloracetique",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Acidomonocloroacetico",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "alpha-chloro-acetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "alpha-Chloroacetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "BRN 0605438",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "C2H3ClO2",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CAS-79-11-8",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Caswell No. 179B",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CCRIS 2117",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CH2ClCOOH",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloracetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "chloro acetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "chloro-acetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "chloroacetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid (80% or less)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CHLOROACETIC ACID CRYSTALLINE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, 99%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, >=99%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CHLOROACETIC ACID, ACS",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, ACS grade",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, ACS reagent, >=99.0%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, analytical standard",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, for synthesis, 99.0%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, liquid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, molten",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, puriss., >=99.0% (T)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, purum, >=97.0% (T)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, solid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroacetic acid, solid (dot)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CHLOROACETIC-ACID",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chloroethanoic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "ClCH2COOH",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "cloroacetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "EPA Pesticide Chemical Code 279400",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "FOCAUTSVDIKZOP-UHFFFAOYSA-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HSDB 939",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kyselina chloroctova",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monochloorazijnzuur",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monochloracetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monochloracetic acidacide monochloracetique",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monochloressigsaeure",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "monochloro acetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "monochloro-acetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monochloroacetic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monochloroethanoic acid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "sJPhLQDIKTp@",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "WLN: QV1G",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Monochloroacetic 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, \"Monochloroacetic acid\", https://foodadditiveindex.com/additives/monochloroacetic-acid. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.602Z"
}