{
 "license": "https://creativecommons.org/licenses/by/4.0/",
 "id": "vetiver-oil",
 "type": "Material",
 "version": 2,
 "updated": "2026-09-30",
 "station": 2,
 "confidence": "B",
 "sources": [
  "GC-10",
  "GC-11"
 ],
 "notes": "The smelling principle of vetiver oil is a trace ketone, (+)-2-epi-ziza-6(13)en-3-one (docs/sources/GC-11-ouyang-2021-vetiver-smelling-principle.md:22); it is not recorded as a molecule (the page does not name it).",
 "name": {
  "value": "vetiver oil (vetiver essential oil)",
  "evidence": "documented",
  "source": "GC-11",
  "where": "docs/sources/GC-11-ouyang-2021-vetiver-smelling-principle.md:13",
  "quote": "The essential oil of vetiver is obtained in 0.2–0.3 % yield by hydrodistillation of the dried roots of the tufted perennial grass Chrysopogon zizanioides (L.) Roberty.",
  "confidence": "A"
 },
 "kind": {
  "value": "natural",
  "evidence": "perfumery convention",
  "source": null,
  "where": null,
  "note": "a distillate of the roots",
  "confidence": "B"
 },
 "botanical": {
  "value": "chrysopogon-zizanioides",
  "evidence": "documented",
  "source": "GC-11",
  "where": "docs/sources/GC-11-ouyang-2021-vetiver-smelling-principle.md:13",
  "quote": "The essential oil of vetiver is obtained in 0.2–0.3 % yield by hydrodistillation of the dried roots of the tufted perennial grass Chrysopogon zizanioides (L.) Roberty.",
  "confidence": "A"
 },
 "part": {
  "value": "the dried roots",
  "evidence": "documented",
  "source": "GC-11",
  "where": "docs/sources/GC-11-ouyang-2021-vetiver-smelling-principle.md:13",
  "quote": "The essential oil of vetiver is obtained in 0.2–0.3 % yield by hydrodistillation of the dried roots of the tufted perennial grass Chrysopogon zizanioides (L.) Roberty.",
  "confidence": "A"
 },
 "extraction": {
  "value": "hydrodistillation",
  "evidence": "documented",
  "source": "GC-11",
  "where": "docs/sources/GC-11-ouyang-2021-vetiver-smelling-principle.md:13",
  "quote": "The essential oil of vetiver is obtained in 0.2–0.3 % yield by hydrodistillation of the dried roots of the tufted perennial grass Chrysopogon zizanioides (L.) Roberty.",
  "confidence": "A"
 },
 "grade": {
  "value": null,
  "evidence": null,
  "source": null,
  "where": null,
  "confidence": null,
  "note": "no grade on record; “Haitian” is an origin, not a filed grade"
 },
 "descriptors": {
  "value": [
   "smoky",
   "rooty"
  ],
  "evidence": "house interpretation",
  "source": null,
  "where": "radlerboutique.html:9487",
  "confidence": "C",
  "note": "the house essay’s words; no descriptor source is filed"
 },
 "constituents": [
  {
   "molecule": "khusimol",
   "identity": {
    "value": true,
    "evidence": "documented",
    "source": "GC-10",
    "where": "docs/sources/GC-10-barcellos-silva-2025-vetiver.md:16",
    "quote": "VEO presents high concentrations of sesquiterpene alcohol content, and the most concentrated alcoholic molecules found within VEO are khusimol, isovalenenol, and vetiselinenol (Figure 1).",
    "confidence": "B",
    "note": "among the most concentrated alcohols of the oil, and in Haitian oil among the metabolites responsible for its odour (docs/sources/GC-10-barcellos-silva-2025-vetiver.md:22)"
   },
   "share": {
    "value": null,
    "evidence": null,
    "source": null,
    "where": null,
    "confidence": null,
    "note": "GC-10 cites a nine-country figure for khusimol (a range of averages) with no method stated: under the site’s rule no share is shown"
   },
   "rank": {
    "value": null,
    "evidence": null,
    "source": null,
    "where": null,
    "confidence": null,
    "note": "the page’s “Khusimol dominates” is not ranked by a filed source"
   }
  }
 ],
 "regulation": {
  "value": null,
  "evidence": null,
  "source": null,
  "where": null,
  "confidence": null,
  "note": "no Regulation record yet"
 },
 "price_band": {
  "value": null,
  "evidence": null,
  "source": null,
  "where": null,
  "confidence": null,
  "note": "nothing on the site is for sale; GC-11’s price is not used (DECISIONS_LOG P2-2)"
 },
 "media": [
  "spec-vetiver",
  "or-5-film"
 ],
 "links": {
  "essay": "/materials#origin-vetiver",
  "card": "/materials#naturals",
  "extraction": "/science#extraction",
  "molecule": "/molecule/khusimol"
 },
 "copy": {
  "lede": "Vetiver oil is hydrodistilled from the dried roots of Chrysopogon zizanioides. It is a complex oil: one study counts over 150 compounds, a review about 200.",
  "body": [
   "Khusimol is among its most concentrated alcohols; the single molecule that gives vetiver its smell, a synthesis study showed, is a trace ketone. The house calls the oil smoky and rooty: our reading, not a source’s."
  ]
 },
 "descriptor_links": [
  {
   "as_used": "smoky",
   "descriptor": "smoky"
  },
  {
   "as_used": "rooty",
   "descriptor": "rooty"
  }
 ]
}