{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/mercaptoimidazoline-and-2-mercaptoimidazoline",
  "slug": "mercaptoimidazoline-and-2-mercaptoimidazoline",
  "name": "Mercaptoimidazoline and 2-mercaptoimidazoline",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": null,
    "inchikey": null,
    "pubchem_cid": null
  },
  "functional_class": null,
  "summary": "Also known as ethylene thiourea, this was used as an accelerator in the manufacture of rubber. The FDA prohibits it in rubber articles intended to contact food, so the restriction applies to equipment and packaging rather than to food itself.",
  "derivation_summary": "A synthetic sulfur-containing heterocycle made from ethylenediamine and carbon disulfide. It also arises as a breakdown product of the ethylenebisdithiocarbamate fungicides, which is a separate regulatory question from this one.",
  "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": "Prohibited from indirect addition to human food through food-contact surfaces.",
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 189.250",
            "url": "https://www.ecfr.gov/current/title-21/section-189.250"
          },
          "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": "Mercaptoimidazoline and 2-mercaptoimidazoline",
      "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, \"Mercaptoimidazoline and 2-mercaptoimidazoline\", https://foodadditiveindex.com/additives/mercaptoimidazoline-and-2-mercaptoimidazoline. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.593Z"
}