{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/guanylic-acid-5",
  "slug": "guanylic-acid-5",
  "name": "Guanylic acid, 5'-",
  "identifiers": {
    "e_number": null,
    "ins_number": "626",
    "cas_number": null,
    "inchikey": null,
    "pubchem_cid": null
  },
  "functional_class": "Flavour enhancer",
  "summary": "Guanylic acid is a savoury flavour enhancer, the mushroom counterpart to inosinate. Dried shiitake are rich in it, which is why drying mushrooms makes them taste more intensely of themselves than fresh ones do.",
  "derivation_summary": "Produced by bacterial fermentation or by hydrolysing yeast RNA. It occurs naturally in dried mushrooms.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "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": []
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "permitted_with_conditions",
      "status_label": "Permitted, with conditions",
      "provision_count": 2,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "1999",
          "citation": {
            "ref": "CXS 192-1995 Table Three, INS 626",
            "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": "12.1.2",
            "name": "Salt substitutes"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "2015",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 626, food category 12.1.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        }
      ]
    }
  ],
  "names": [
    {
      "name": "GUANYLIC ACID, 5'-",
      "type": "common",
      "source": "gsfa"
    },
    {
      "name": "626",
      "type": "ins",
      "source": "gsfa"
    }
  ],
  "hazard_reference_values": [],
  "sources": [
    {
      "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, \"Guanylic acid, 5'-\", https://foodadditiveindex.com/additives/guanylic-acid-5. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.555Z"
}