{
 "license": "https://creativecommons.org/licenses/by/4.0/",
 "id": "rose-teaching-accord",
 "type": "Accord",
 "version": 2,
 "updated": "2026-09-30",
 "station": 8,
 "confidence": "A",
 "sources": [
  "KLE-1",
  "S4",
  "S6",
  "GC-2",
  "S5",
  "GC-1",
  "IFRA-077"
 ],
 "name": {
  "value": "A rose, from four molecules",
  "evidence": "house interpretation",
  "source": null,
  "where": null,
  "confidence": "C",
  "note": "the house’s name for this teaching accord"
 },
 "purpose": "teaching",
 "disclaimer": "A teaching accord for learning: not a Radler formula, not a finished perfume, not safety-assessed; do not make it for skin.",
 "structure": {
  "value": "A rose note assembled from four molecules the filed rose studies name: phenylethyl alcohol, citronellol and geraniol as the body, and a trace of β-damascenone for the fruity, jammy edge.",
  "evidence": "house interpretation",
  "source": null,
  "where": null,
  "confidence": "B",
  "note": "the choice of the four is the house’s; each molecule’s place in rose oil is documented on the component"
 },
 "family": {
  "value": "floral (rose)",
  "evidence": "perfumery convention",
  "source": null,
  "where": null,
  "confidence": "B",
  "note": "a rose soliflore by the trade’s convention"
 },
 "components": [
  {
   "molecule": "phenylethyl-alcohol",
   "role": {
    "value": "heart",
    "evidence": "documented",
    "source": "KLE-1",
    "where": "docs/sources/KLE-1-kleoff-2022-odorants-in-flow.md:27",
    "quote": "Floral notes, such as rose, jasmine, orange blossom, or lavender, are typically middle notes defining the “heart” of many perfumes",
    "confidence": "A",
    "note": "the review names rose among the floral heart notes"
   },
   "teaching_parts": {
    "value": 45,
    "unit": "parts",
    "evidence": "modeled",
    "confidence": "C",
    "note": "teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making"
   },
   "volatility": {
    "value": null,
    "evidence": null,
    "source": null,
    "where": null,
    "confidence": null,
    "note": "no volatility class on record for phenylethyl-alcohol"
   },
   "identity": {
    "value": "a key odorant of rose oil",
    "evidence": "documented",
    "source": "S4",
    "where": "docs/sources/S4-xiao-2017-rose-oil-odorants.md:11",
    "confidence": "A",
    "quote": "phenyl ethyl alcohol",
    "note": "the component is a named constituent of rose otto (rose oil; Bulgarsko rozovo maslo, PGI) (that record’s identity field); S4 lists it among the important rose-oil odorants (abstract; species not stated)"
   }
  },
  {
   "molecule": "citronellol",
   "role": {
    "value": "heart",
    "evidence": "documented",
    "source": "KLE-1",
    "where": "docs/sources/KLE-1-kleoff-2022-odorants-in-flow.md:27",
    "quote": "Floral notes, such as rose, jasmine, orange blossom, or lavender, are typically middle notes defining the “heart” of many perfumes",
    "confidence": "A",
    "note": "the review names rose among the floral heart notes"
   },
   "teaching_parts": {
    "value": 30,
    "unit": "parts",
    "evidence": "modeled",
    "confidence": "C",
    "note": "teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making"
   },
   "volatility": {
    "value": null,
    "evidence": null,
    "source": null,
    "where": null,
    "confidence": null,
    "note": "no volatility class on record for citronellol"
   },
   "identity": {
    "value": "one of the most abundant alcohols of damask rose oil",
    "evidence": "measured",
    "source": "S6",
    "where": "docs/sources/S6-kumar-2023-damask-rose-clones.md:13",
    "confidence": "A",
    "quote": "Acyclic monoterpene alcohols citronellol (20.35-44.75%) and geraniol (15.63-27.76%) were highest",
    "sources": [
     "S4",
     "GC-2"
    ],
    "note": "the component is a named constituent of rose otto (rose oil; Bulgarsko rozovo maslo, PGI) (that record’s identity field)"
   }
  },
  {
   "molecule": "geraniol",
   "role": {
    "value": "heart",
    "evidence": "documented",
    "source": "KLE-1",
    "where": "docs/sources/KLE-1-kleoff-2022-odorants-in-flow.md:27",
    "quote": "Floral notes, such as rose, jasmine, orange blossom, or lavender, are typically middle notes defining the “heart” of many perfumes",
    "confidence": "A",
    "note": "the review names rose among the floral heart notes"
   },
   "teaching_parts": {
    "value": 24.9,
    "unit": "parts",
    "evidence": "modeled",
    "confidence": "C",
    "note": "teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making"
   },
   "volatility": {
    "value": null,
    "evidence": null,
    "source": null,
    "where": null,
    "confidence": null,
    "note": "no volatility class on record for geraniol"
   },
   "identity": {
    "value": "one of the most abundant alcohols of damask rose oil",
    "evidence": "measured",
    "source": "S6",
    "where": "docs/sources/S6-kumar-2023-damask-rose-clones.md:13",
    "confidence": "A",
    "quote": "geraniol (15.63-27.76%)",
    "sources": [
     "GC-2"
    ],
    "note": "the component is a named constituent of rose otto (rose oil; Bulgarsko rozovo maslo, PGI) (that record’s identity field)"
   }
  },
  {
   "molecule": "beta-damascenone",
   "role": {
    "value": "trace",
    "evidence": "perfumery convention",
    "source": null,
    "where": null,
    "confidence": "B",
    "note": "a trace: its odour threshold on record is very low (the molecule record), so a trace is enough by convention"
   },
   "teaching_parts": {
    "value": 0.1,
    "unit": "parts",
    "evidence": "modeled",
    "confidence": "C",
    "note": "teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making"
   },
   "volatility": {
    "value": null,
    "evidence": null,
    "source": null,
    "where": null,
    "confidence": null,
    "note": "no volatility class on record for beta-damascenone"
   },
   "identity": {
    "value": "a key flavour compound of rose essential oil",
    "evidence": "documented",
    "source": "S5",
    "where": "docs/sources/S5-huang-2009-rdccd1.md:11",
    "confidence": "A",
    "quote": "Several of the key flavor compounds in rose essential oil are C(13)-norisoprenoids, such as beta-damascenone",
    "note": "the component is a named constituent of rose otto (rose oil; Bulgarsko rozovo maslo, PGI) (that record’s identity field)"
   }
  }
 ],
 "substitutions": [
  {
   "for": "phenylethyl-alcohol",
   "material": "rose-absolute",
   "value": "Rose absolute in place of phenylethyl alcohol: the absolute’s primary component on record is phenylethyl alcohol.",
   "evidence": "inferred",
   "source": "GC-1",
   "where": "docs/sources/GC-1-cevikbas-2024-rose-absolute.md:11",
   "quote": "This represents the initial study to examine the antibiofilm and antivirulence capabilities of rose absolute and its primary component, phenylethyl alcohol.",
   "confidence": "B",
   "note": "inferred from the rose absolute record; the absolute brings its other constituents with it"
  }
 ],
 "history": [],
 "fragrances": [],
 "regulations": [
  "ifra-rose-ketones",
  "eu-2009-1223",
  "eu-2023-1545"
 ],
 "descriptors": [
  "floral",
  "honey",
  "soapy",
  "rose",
  "citrus",
  "fruity",
  "jammy"
 ],
 "media": [],
 "links": {
  "essay": "/science#accord-building",
  "tool": "/atelier#accord-architect"
 },
 "copy": {
  "lede": "A rose note built from four of its molecules, to smell how a rose is put together.",
  "body": [
   "Phenylethyl alcohol, citronellol and geraniol make the body; a trace of β-damascenone gives the fruity edge. Take one away and the rose changes shape: that is the lesson."
  ]
 },
 "teaching_variants": [
  {
   "id": "v1",
   "label": "The rose as written",
   "kind": "teaching variant, modeled",
   "basis": "the record as written",
   "as_written": true,
   "why": {
    "value": "The rose as the record writes it: phenylethyl alcohol, citronellol and geraniol for the body, and a trace of β-damascenone.",
    "evidence": "house interpretation",
    "source": null,
    "where": null,
    "confidence": "B",
    "note": "the accord record’s structure field: the choice of the four molecules is the house’s; each one’s place in rose oil is documented on its component"
   },
   "regulations": [],
   "history": [],
   "fragrances": []
  },
  {
   "id": "v2",
   "label": "Citronellol-forward",
   "kind": "teaching variant, modeled",
   "basis": "house teaching example",
   "why": {
    "value": "A house teaching example: more citronellol and less of the others, the β-damascenone trace halved, to show how the balance of the body moves the words on record.",
    "evidence": "house interpretation",
    "source": null,
    "where": null,
    "confidence": "C",
    "note": "a house teaching example: no filed source documents this version, and it is not a reconstruction of any perfume"
   },
   "regulations": [],
   "history": [],
   "fragrances": [],
   "components": [
    {
     "molecule": "phenylethyl-alcohol",
     "teaching_parts": {
      "value": 35,
      "unit": "parts",
      "evidence": "modeled",
      "confidence": "C",
      "note": "teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making"
     }
    },
    {
     "molecule": "citronellol",
     "teaching_parts": {
      "value": 45,
      "unit": "parts",
      "evidence": "modeled",
      "confidence": "C",
      "note": "teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making"
     }
    },
    {
     "molecule": "geraniol",
     "teaching_parts": {
      "value": 19.95,
      "unit": "parts",
      "evidence": "modeled",
      "confidence": "C",
      "note": "teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making"
     }
    },
    {
     "molecule": "beta-damascenone",
     "teaching_parts": {
      "value": 0.05,
      "unit": "parts",
      "evidence": "modeled",
      "confidence": "C",
      "note": "teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making"
     }
    }
   ]
  },
  {
   "id": "v3",
   "label": "Damascenone-forward",
   "kind": "teaching variant, modeled",
   "basis": "house teaching example",
   "why": {
    "value": "A house teaching example: five times the β-damascenone, to show how far a trace with a low measured odour threshold reaches. β-Damascenone is one of the rose ketones an IFRA Standard (the industry’s own standard, not law) restricts by concentration in finished products; this teaching accord is not a finished product and is not assessed.",
    "evidence": "house interpretation",
    "source": "IFRA-077",
    "where": "docs/sources/IFRA-077-rose-ketones.md:29",
    "quote": "INTRINSIC PROPERTY DRIVING RISK MANAGEMENT: DERMAL SENSITIZATION",
    "confidence": "C",
    "note": "the standard is documented (its Regulation record); the version is the house’s teaching choice. US law: not on record"
   },
   "regulations": [
    "ifra-rose-ketones"
   ],
   "history": [],
   "fragrances": [],
   "components": [
    {
     "molecule": "phenylethyl-alcohol",
     "teaching_parts": {
      "value": 45,
      "unit": "parts",
      "evidence": "modeled",
      "confidence": "C",
      "note": "teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making"
     }
    },
    {
     "molecule": "citronellol",
     "teaching_parts": {
      "value": 27,
      "unit": "parts",
      "evidence": "modeled",
      "confidence": "C",
      "note": "teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making"
     }
    },
    {
     "molecule": "geraniol",
     "teaching_parts": {
      "value": 27.5,
      "unit": "parts",
      "evidence": "modeled",
      "confidence": "C",
      "note": "teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making"
     }
    },
    {
     "molecule": "beta-damascenone",
     "teaching_parts": {
      "value": 0.5,
      "unit": "parts",
      "evidence": "modeled",
      "confidence": "C",
      "note": "teaching proportions of a teaching variant, a house interpretation for learning: modeled, not measured, not a formula, not for making"
     }
    }
   ]
  }
 ]
}