{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/dichlorodifluoromethane",
  "slug": "dichlorodifluoromethane",
  "name": "Dichlorodifluoromethane",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": null,
    "inchikey": "PXBRQCKWGAHEHS-UHFFFAOYSA-N",
    "pubchem_cid": 6391
  },
  "functional_class": null,
  "summary": "Dichlorodifluoromethane is a listed refrigerant and direct-contact freezing agent. It is CFC-12, phased out globally under the Montreal Protocol for destroying ozone, so the listing has outlasted the substance's availability.",
  "derivation_summary": "Produced by fluorinating carbon tetrachloride. Production for most uses ceased under the Montreal Protocol.",
  "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 173.355",
            "url": "https://www.ecfr.gov/current/title-21/section-173.355"
          },
          "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": "75-71-8",
      "type": "cas",
      "source": "pubchem"
    },
    {
      "name": "Algofrene type 2",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Arcton 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Arcton 6",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Caswell No. 304",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CCl2F2",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CCRIS 3501",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CFC 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "CFC-12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chlorofluorocarbon 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Chlorofluoromethane (CCl2F2)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "dichloro(difluoro)methane",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dichloro-difluoro-methane",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "dichlorodifluormethane",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "dichlorodifluoro-methane",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "DICHLORODIFLUOROMETHANE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dichlorodifluoromethane (NF)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Diclorodifluometano",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Difluorodichloromethane",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dwuchlorodwufluorometan",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dymel 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Electro-CF 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "EPA Pesticide Chemical Code 000014",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Eskimon 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "FCC 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "FKW 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Fluorocarbon 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Fluorocarbon-12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Forane 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Freon 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Freon F-12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Freon-12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Frigen 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Fron 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Genetron 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Halocarbon 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Halon",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Halon 122",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HSDB 139",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Isceon 122",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Isot ron 2",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Isotron 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Isotron 2",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Kaiser chemicals 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ledon 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "METHANE, DICHLORODIFLUORO",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Methane, dichlorodifluoro-",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "OFM06SG1KO",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Propellant 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Propellent 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "R 12 (refrigerant)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "R12 [UN1028] [Nonflammable gas]",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "RCRA waste no. U075",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Rcra waste number U075",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Refrigerant 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Refrigerant R 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Refrigerant R12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Sterethox",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ucon 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ucon 12/halocarbon 12",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Dichlorodifluoromethane",
      "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, \"Dichlorodifluoromethane\", https://foodadditiveindex.com/additives/dichlorodifluoromethane. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.502Z"
}