{
 "license": "https://creativecommons.org/licenses/by/4.0/",
 "id": "atranol",
 "type": "Molecule",
 "version": 3,
 "updated": "2026-10-01",
 "station": 4,
 "confidence": "A",
 "sources": [
  "PUBCHEM-458186",
  "IFRA-067",
  "EU-2017-1410",
  "WD-1"
 ],
 "name": {
  "value": "2,6-dihydroxy-4-methylbenzaldehyde",
  "evidence": "documented",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.property.json:11",
  "quote": "2,6-Dihydroxy-4-Methylbenzaldehyde",
  "confidence": "A",
  "note": "PubChem’s title, written in lower case like the IUPAC name (the quote is the title as PubChem prints it)"
 },
 "cas": {
  "value": "526-37-4",
  "evidence": "documented",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.synonyms.json:12",
  "quote": "526-37-4",
  "confidence": "A",
  "note": "among the CID’s PubChem synonyms, and PubChem resolves it back to this CID"
 },
 "pubchem_cid": {
  "value": 458186,
  "evidence": "documented",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.property.json:5",
  "confidence": "A"
 },
 "wikidata_qid": {
  "value": "Q81985556",
  "evidence": "documented",
  "source": "WD-1",
  "where": "reports/l2/ids/wikidata/Q81985556.json:14",
  "quote": "{\"property\":\"P662\",\"label\":\"PubChem CID\",\"value\":\"458186\",\"rank\":\"normal\"}",
  "confidence": "A",
  "note": "the item states PubChem CID 458186 (P662) and the record’s InChIKey (P235); found by the statement search haswbstatement:P662=458186"
 },
 "odeuropa_eokg_uri": {
  "value": null,
  "evidence": null,
  "source": null,
  "where": null,
  "confidence": null,
  "note": "no concept of the European Olfactory Knowledge Graph states owl:sameAs / skos:exactMatch / skos:closeMatch to Q81985556 or this CAS number (the Odeuropa lookup, read 2026-09-30)"
 },
 "formula": {
  "value": "C8H8O3",
  "evidence": "documented",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.property.json:6",
  "confidence": "A"
 },
 "molecular_weight": {
  "value": 152.15,
  "evidence": "documented",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.property.json:7",
  "confidence": "A",
  "note": "g/mol, as PubChem states it"
 },
 "iupac_name": {
  "value": "2,6-dihydroxy-4-methylbenzaldehyde",
  "evidence": "documented",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.property.json:10",
  "confidence": "A"
 },
 "smiles": {
  "value": "CC1=CC(=C(C(=C1)O)C=O)O",
  "evidence": "documented",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.property.json:8",
  "confidence": "A"
 },
 "inchikey": {
  "value": "JASONGFGOLHLGB-UHFFFAOYSA-N",
  "evidence": "documented",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.property.json:9",
  "confidence": "A"
 },
 "conformer": {
  "kind": "PubChem computed 3D conformer",
  "conformer_id": "0006FDCA00000001",
  "units": "angstrom",
  "evidence": "modeled",
  "source": "PUBCHEM-458186",
  "where": "reports/plan-steps/step7/pubchem/cid-458186.3d.sdf:107",
  "note": "PubChem’s computed 3D conformer (the 3D SDF record): a model, drawn schematically, not an experimental structure",
  "atoms": [
   {
    "i": 1,
    "el": "O",
    "xyz": [
     1.1875,
     -2.1299,
     0.0003
    ]
   },
   {
    "i": 2,
    "el": "O",
    "xyz": [
     0.3445,
     2.5943,
     0.0009
    ]
   },
   {
    "i": 3,
    "el": "O",
    "xyz": [
     3.0778,
     -0.4053,
     0.0003
    ]
   },
   {
    "i": 4,
    "el": "C",
    "xyz": [
     -1.9455,
     -0.2518,
     -0.0005
    ]
   },
   {
    "i": 5,
    "el": "C",
    "xyz": [
     0.8011,
     0.2383,
     -0.0002
    ]
   },
   {
    "i": 6,
    "el": "C",
    "xyz": [
     -1.0466,
     -1.3184,
     -0.0002
    ]
   },
   {
    "i": 7,
    "el": "C",
    "xyz": [
     -1.471,
     1.0599,
     -0.0007
    ]
   },
   {
    "i": 8,
    "el": "C",
    "xyz": [
     0.3266,
     -1.0734,
     -0.0001
    ]
   },
   {
    "i": 9,
    "el": "C",
    "xyz": [
     -0.0978,
     1.3051,
     -0.0005
    ]
   },
   {
    "i": 10,
    "el": "C",
    "xyz": [
     -3.4135,
     -0.5135,
     0.001
    ]
   },
   {
    "i": 11,
    "el": "C",
    "xyz": [
     2.2368,
     0.4948,
     -0.0002
    ]
   },
   {
    "i": 12,
    "el": "H",
    "xyz": [
     -1.4107,
     -2.3431,
     0.002
    ]
   },
   {
    "i": 13,
    "el": "H",
    "xyz": [
     -2.1737,
     1.8899,
     0.0013
    ]
   },
   {
    "i": 14,
    "el": "H",
    "xyz": [
     -3.7872,
     -0.5518,
     1.029
    ]
   },
   {
    "i": 15,
    "el": "H",
    "xyz": [
     -3.9544,
     0.2698,
     -0.5409
    ]
   },
   {
    "i": 16,
    "el": "H",
    "xyz": [
     -3.6473,
     -1.4632,
     -0.4922
    ]
   },
   {
    "i": 17,
    "el": "H",
    "xyz": [
     2.5651,
     1.5471,
     -0.0007
    ]
   },
   {
    "i": 18,
    "el": "H",
    "xyz": [
     2.109,
     -1.8397,
     -0.0621
    ]
   },
   {
    "i": 19,
    "el": "H",
    "xyz": [
     -0.4213,
     3.1938,
     0.0006
    ]
   }
  ],
  "bonds": [
   {
    "a": 1,
    "b": 8,
    "order": 1
   },
   {
    "a": 1,
    "b": 18,
    "order": 1
   },
   {
    "a": 2,
    "b": 9,
    "order": 1
   },
   {
    "a": 2,
    "b": 19,
    "order": 1
   },
   {
    "a": 3,
    "b": 11,
    "order": 2
   },
   {
    "a": 4,
    "b": 6,
    "order": 2
   },
   {
    "a": 4,
    "b": 7,
    "order": 1
   },
   {
    "a": 4,
    "b": 10,
    "order": 1
   },
   {
    "a": 5,
    "b": 8,
    "order": 2
   },
   {
    "a": 5,
    "b": 9,
    "order": 1
   },
   {
    "a": 5,
    "b": 11,
    "order": 1
   },
   {
    "a": 6,
    "b": 8,
    "order": 1
   },
   {
    "a": 6,
    "b": 12,
    "order": 1
   },
   {
    "a": 7,
    "b": 9,
    "order": 2
   },
   {
    "a": 7,
    "b": 13,
    "order": 1
   },
   {
    "a": 10,
    "b": 14,
    "order": 1
   },
   {
    "a": 10,
    "b": 15,
    "order": 1
   },
   {
    "a": 10,
    "b": 16,
    "order": 1
   },
   {
    "a": 11,
    "b": 17,
    "order": 1
   }
  ]
 },
 "descriptors": {
  "value": null,
  "evidence": null,
  "source": null,
  "where": null,
  "confidence": null,
  "note": "no descriptor on record: no house wording on a data file, no descriptor source filed"
 },
 "threshold": {
  "value": null,
  "unit": null,
  "medium": null,
  "method": null,
  "evidence": null,
  "source": null,
  "where": null,
  "date": null,
  "confidence": null,
  "note": "no odour-threshold source in the repository"
 },
 "occurrence": [
  {
   "material": "oakmoss-absolute",
   "share": {
    "value": null,
    "evidence": null,
    "source": null,
    "where": null,
    "confidence": null,
    "note": "no share on record"
   },
   "evidence": "documented",
   "source": "EU-2017-1410",
   "where": "docs/sources/EU-2017-1410-hicc-atranol-prohibited.md:17",
   "quote": "The SCCS indicated in its opinion of 26-27 June 2012 that atranol and chloroatranol are natural components of oak tree moss (Evernia prunastri) and treemoss (Evernia furfuracea) extracts regulated in entry 91 and 92, respectively, of Annex III to Regulation (EC) No 1223/2009.",
   "confidence": "A",
   "note": "a natural component of oak moss extract, as the Regulation’s recital states it (after the SCCS opinion of 2012)"
  }
 ],
 "volatility_class": {
  "value": null,
  "evidence": null,
  "source": null,
  "where": null,
  "confidence": null,
  "note": "no volatility class on record for atranol (the house’s volatility table has no entry)"
 },
 "regulation": {
  "value": [
   "ifra-oakmoss-extracts",
   "eu-2017-1410"
  ],
  "evidence": "documented",
  "source": "IFRA-067",
  "sources": [
   "EU-2017-1410"
  ],
  "where": "docs/sources/IFRA-067-oakmoss-extracts.md:32",
  "quote": "Further, levels of Atranol and Chloroatranol should each be below 100 ppm in Oakmoss extracts.",
  "confidence": "A",
  "note": "Lane 20: the Regulation records that apply to it (educational summaries as of 2026-09-30; not legal advice)"
 },
 "media": [],
 "links": {
  "explorer": "/perfumery/science.html#mol-explorer"
 },
 "copy": {
  "lede": "Atranol is a natural component of oak moss extracts, and the reason those extracts are restricted.",
  "body": [
   "EU law prohibits atranol in cosmetic products; the IFRA Standard on oakmoss extracts ties its restriction to atranol and chloroatranol. Its identity is PubChem’s."
  ]
 },
 "descriptor_links": [],
 "source_licence": {
  "derived_from": "sources[] (scripts/validate-entities.mjs recomputes this)",
  "classes": [
   "CC0",
   "EU reuse policy",
   "free with acknowledgement",
   "no licence stated"
  ],
  "commercial_use": "facts and short quotes only",
  "single_source": null,
  "licence": null
 }
}