{
 "license": "https://creativecommons.org/licenses/by/4.0/",
 "id": "methyl-jasmonate-1962",
 "type": "HistoricalEvent",
 "version": 3,
 "updated": "2026-09-30",
 "station": 12,
 "confidence": "A",
 "sources": [
  "JAS-3",
  "JAS-4"
 ],
 "title": "Methyl jasmonate reported from jasmine, 1962",
 "date": {
  "value": "1962",
  "precision": "year",
  "year": 1962,
  "evidence": "documented",
  "source": "JAS-3",
  "where": "reports/l2/fulltext/JAS-3.txt:11",
  "quote": "MeJA was first discovered in 1962 and was extracted from Royal Jasmine by Demole",
  "confidence": "A",
  "sources": [
   "JAS-4"
  ],
  "note": "JAS-4 gives the same year, citing Demole et al. 1962 (Jasminum grandiflorum)"
 },
 "kind": "isolation",
 "what": {
  "value": "The isolation of methyl jasmonate from jasmine (Jasminum grandiflorum, “Royal Jasmine”) is reported (Demole and co-workers).",
  "evidence": "documented",
  "source": "JAS-3",
  "where": "reports/l2/fulltext/JAS-3.txt:11",
  "quote": "MeJA was first discovered in 1962 and was extracted from Royal Jasmine by Demole",
  "confidence": "A",
  "sources": [
   "JAS-4"
  ]
 },
 "label": "documented",
 "place": {
  "value": null,
  "evidence": null,
  "source": null,
  "where": null,
  "confidence": null,
  "note": "no place on record for this event"
 },
 "actors": [
  {
   "name": "Demole and co-workers",
   "role": "chemists",
   "perfumer": null,
   "evidence": "documented",
   "source": "JAS-3",
   "where": "reports/l2/fulltext/JAS-3.txt:11",
   "quote": "MeJA was first discovered in 1962 and was extracted from Royal Jasmine by Demole",
   "confidence": "A"
  }
 ],
 "disagreements": [],
 "molecules": [
  "methyl-jasmonate"
 ],
 "materials": [],
 "botanicals": [
  "jasminum-grandiflorum"
 ],
 "origins": [],
 "perfumers": [],
 "fragrances": [],
 "regulations": [],
 "accords": [
  "white-floral-teaching-accord"
 ],
 "media": [],
 "links": {
  "essay": "/perfumery/history.html#mega-timeline"
 },
 "copy": {
  "lede": "In 1962 the isolation of methyl jasmonate from jasmine was reported.",
  "body": [
   "Two plant-biology reviews date it so, citing Demole and co-workers. Its relative, methyl dihydrojasmonate, is the fresh floral of the teaching white-floral accord."
  ]
 },
 "source_licence": {
  "derived_from": "sources[] (scripts/validate-entities.mjs recomputes this)",
  "classes": [
   "CC BY"
  ],
  "commercial_use": "yes, with attribution",
  "single_source": null,
  "licence": null
 }
}