{"license":"https://creativecommons.org/licenses/by/4.0/","about":"The input of the Olfactory Causal Debugger for a teaching accord, read from the records named in each field; the model is /sections/causal-model.mjs (formulas in its header). Everything the model computes from it is modeled.","accord":"rose-teaching-accord","name":"A rose, from four molecules","version":2,"updated":"2026-09-30","disclaimer":"A teaching accord for learning: not a Radler formula, not a finished perfume, not safety-assessed; do not make it for skin.","href":"/accord/rose-teaching-accord","halfLife":{"top":1.5,"heart":6,"base":12,"ev":{"e":"modeled","n":"the site constants of the evaporation simulator on /science for limonene (its Top note), Hedione (Heart) and Ambroxan (Base); “chosen for the simulator and are not measurements”"}},"components":[{"key":"phenylethyl-alcohol","id":"phenylethyl-alcohol","type":"molecule","name":"2-phenylethyl alcohol","href":"/molecule/phenylethyl-alcohol","onRecord":true,"parts":45,"partsEv":{"e":"modeled","c":"C","n":"teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making","r":"accord/rose-teaching-accord · teaching_parts"},"role":"heart","roleEv":{"e":"documented","s":["KLE-1"],"q":"Floral notes, such as rose, jasmine, orange blossom, or lavender, are typically middle notes defining the “heart” of many perfumes","c":"A","n":"the review names rose among the floral heart notes","r":"accord/rose-teaching-accord · role"},"vol":null,"volEv":{"n":"no volatility class on record for phenylethyl-alcohol","r":"accord/rose-teaching-accord · volatility"},"desc":["floral","honey"],"descEv":{"e":"documented","s":["OT-1"],"q":"2-phenylethanol | CAS 60-12-8 | Odor quality: floral, honey-like","c":"A","r":"molecule/phenylethyl-alcohol · descriptors","v":"floral, honey-like"},"mols":[{"id":"phenylethyl-alcohol","name":"2-phenylethyl alcohol"}],"molsNote":null,"thr":{"v":140,"unit":"µg/kg","medium":"water","method":"orthonasal odour detection threshold in water, determined by the method of Czerny et al. 2008, Eur Food Res Technol 228:265–273, as the database states","ev":{"e":"measured","s":["OT-1"],"c":"A","n":"the retronasal threshold in the same study is 390 µg/kg (OT-1); an older compiled value, 750–1100 ppb in water (OT-4), states no method","r":"molecule/phenylethyl-alcohol · threshold"}},"thrNote":null,"regs":[],"regEv":{"n":"no Regulation record yet","r":"molecule/phenylethyl-alcohol · regulation"},"prov":[{"t":"occurs in rose absolute","href":"/material/rose-absolute","ev":{"e":"measured","s":["GC-1"],"q":"rose absolute and its primary component, phenylethyl alcohol","c":"A","n":"GC-2 agrees: \"the main constituent of rose absolute\" (one sample)","r":"molecule/phenylethyl-alcohol · occurrence"}},{"t":"occurs in rose otto","href":"/material/rose-otto","ev":{"e":"documented","s":["S4"],"q":"phenyl ethyl alcohol","c":"A","r":"molecule/phenylethyl-alcohol · occurrence"}},{"t":"no price: nothing on this site is for sale","ev":{"e":"house rule","n":"nothing on the site is for sale; no price is filed for molecules"}}]},{"key":"citronellol","id":"citronellol","type":"molecule","name":"citronellol","href":"/molecule/citronellol","onRecord":true,"parts":30,"partsEv":{"e":"modeled","c":"C","n":"teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making","r":"accord/rose-teaching-accord · teaching_parts"},"role":"heart","roleEv":{"e":"documented","s":["KLE-1"],"q":"Floral notes, such as rose, jasmine, orange blossom, or lavender, are typically middle notes defining the “heart” of many perfumes","c":"A","n":"the review names rose among the floral heart notes","r":"accord/rose-teaching-accord · role"},"vol":null,"volEv":{"n":"no volatility class on record for citronellol","r":"accord/rose-teaching-accord · volatility"},"desc":["soapy","rose"],"descEv":{"e":"documented","s":["OT-1"],"q":"β-citronellol | CAS 106-22-9, 1117-61-9, 7540-51-4 | Odor quality: soapy, rose-like","c":"A","r":"molecule/citronellol · descriptors","v":"soapy, rose-like"},"mols":[{"id":"citronellol","name":"citronellol"}],"molsNote":null,"thr":null,"thrNote":"no single value: the record is the unspecified compound (CAS 106-22-9) and the filed measurements are per enantiomer, (R) 10 µg/kg and (S) 4.9 µg/kg in water (OT-1, Schaller and Schieberle 2020); (+)-citronellol 40 ppb in water in a compilation that states no method (OT-4)","regs":["eu-2009-1223","eu-2023-1545"],"regEv":{"e":"documented","s":["EU-2009-1223","EU-2023-1545"],"q":"86 Citronellol/(±) -3,7-dimethyloct-6-en-1-ol Citronellol 106-22-9/26489-01-0","c":"A","n":"the house’s review: the Regulation records that apply to it (educational summaries as of 2026-09-30; not compliance advice)","r":"molecule/citronellol · regulation"},"prov":[{"t":"occurs in rose otto","href":"/material/rose-otto","ev":{"e":"measured","s":["S6"],"q":"citronellol (20.35-44.75%) and geraniol (15.63-27.76%) were highest","c":"A","n":"the range is one study’s and is not shown as a share","r":"molecule/citronellol · occurrence"}},{"t":"occurs in rose absolute","href":"/material/rose-absolute","ev":{"e":"measured","s":["GC-1"],"c":"A","r":"molecule/citronellol · occurrence"}},{"t":"no price: nothing on this site is for sale","ev":{"e":"house rule","n":"nothing on the site is for sale; no price is filed for molecules"}}]},{"key":"geraniol","id":"geraniol","type":"molecule","name":"geraniol","href":"/molecule/geraniol","onRecord":true,"parts":24.9,"partsEv":{"e":"modeled","c":"C","n":"teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making","r":"accord/rose-teaching-accord · teaching_parts"},"role":"heart","roleEv":{"e":"documented","s":["KLE-1"],"q":"Floral notes, such as rose, jasmine, orange blossom, or lavender, are typically middle notes defining the “heart” of many perfumes","c":"A","n":"the review names rose among the floral heart notes","r":"accord/rose-teaching-accord · role"},"vol":null,"volEv":{"n":"no volatility class on record for geraniol","r":"accord/rose-teaching-accord · volatility"},"desc":["rose","citrus"],"descEv":{"e":"documented","s":["OT-1"],"q":"geraniol | CAS 106-24-1 | Odor quality: rose-like, citrus-like","c":"A","r":"molecule/geraniol · descriptors","v":"rose-like, citrus-like"},"mols":[{"id":"geraniol","name":"geraniol"}],"molsNote":null,"thr":{"v":1.1,"unit":"µg/kg","medium":"water","method":"orthonasal odour detection threshold in water, determined by the method of Czerny et al. 2008, Eur Food Res Technol 228:265–273, as the database states","ev":{"e":"measured","s":["OT-1"],"c":"A","n":"the retronasal threshold in the same study is 2.5 µg/kg (OT-1); an older compiled value, 40–75 ppb in water (OT-4), states no method","r":"molecule/geraniol · threshold"}},"thrNote":null,"regs":["eu-2009-1223"],"regEv":{"e":"documented","s":["EU-2009-1223"],"q":"78 2,6-Octadien-1-ol, 3,7-dimethyl-, (2E)- Geraniol 106-24-1","c":"A","n":"the house’s review: the Regulation records that apply to it (educational summaries as of 2026-09-30; not compliance advice)","r":"molecule/geraniol · regulation"},"prov":[{"t":"occurs in rose otto","href":"/material/rose-otto","ev":{"e":"measured","s":["S6"],"q":"citronellol (20.35-44.75%) and geraniol (15.63-27.76%) were highest","c":"A","n":"the range is one study’s and is not shown as a share","r":"molecule/geraniol · occurrence"}},{"t":"occurs in rose absolute","href":"/material/rose-absolute","ev":{"e":"measured","s":["GC-1"],"c":"A","r":"molecule/geraniol · occurrence"}},{"t":"no price: nothing on this site is for sale","ev":{"e":"house rule","n":"nothing on the site is for sale; no price is filed for molecules"}}]},{"key":"beta-damascenone","id":"beta-damascenone","type":"molecule","name":"β-damascenone","href":"/molecule/beta-damascenone","onRecord":true,"parts":0.1,"partsEv":{"e":"modeled","c":"C","n":"teaching proportions, a house interpretation for learning: modeled, not measured, not a formula, not for making","r":"accord/rose-teaching-accord · teaching_parts"},"role":"trace","roleEv":{"e":"perfumery convention","c":"B","n":"a trace: its odour threshold on record is very low (the molecule record), so a trace is enough by convention","r":"accord/rose-teaching-accord · role"},"vol":null,"volEv":{"n":"no volatility class on record for beta-damascenone","r":"accord/rose-teaching-accord · volatility"},"desc":["rose","fruity","jammy"],"descEv":{"e":"house interpretation","w":[{"t":"the page’s own data (a script, not a section)"}],"c":"C","n":"the house’s own odour words on the page’s MOLS entry; no descriptor source is filed","r":"molecule/beta-damascenone · descriptors","v":"rose, fruity, jammy"},"mols":[{"id":"beta-damascenone","name":"β-damascenone"}],"molsNote":null,"thr":{"v":0.006,"unit":"µg/kg","medium":"water","method":"orthonasal odour detection threshold in water, determined by the method of Czerny et al. 2008, Eur Food Res Technol 228:265–273, as the database states","ev":{"e":"measured","s":["OT-1"],"c":"A","n":"about six parts per trillion by mass. The Leibniz-LSB@TUM database lists the (E)-isomer (CAS 23726-93-4; this record’s PubChem CID is the (E)-isomer). The figure the site once gave, 2 parts per trillion (0.002 ppb in water), is Buttery et al.’s as compiled in OT-4, which does not state the method; the “0.3 ppb” once given is Ambroxan’s figure in the same compilation, and the “0.000009 µg/m³” (in air) has no source (the database’s air values for β-damascenone are 0.002–0.004 ng/L, Blank et al. 1992). (the open-questions list).","r":"molecule/beta-damascenone · threshold"}},"thrNote":null,"regs":["ifra-rose-ketones"],"regEv":{"e":"documented","s":["IFRA-077"],"q":"CAS-No.: 23696-85-7","c":"A","n":"the house’s review: the Regulation records that apply to it (educational summaries as of 2026-09-30; not compliance advice)","r":"molecule/beta-damascenone · regulation"},"prov":[{"t":"occurs in rose otto","href":"/material/rose-otto","ev":{"e":"documented","s":["S5"],"q":"Several of the key flavor compounds in rose essential oil are C(13)-norisoprenoids, such as beta-damascenone","c":"A","r":"molecule/beta-damascenone · occurrence"}},{"t":"occurs in rose absolute","href":"/material/rose-absolute","ev":{"e":"inferred","s":["S5"],"c":"C","n":"S5 speaks of the essential oil; the absolute is inferred","r":"molecule/beta-damascenone · occurrence"}},{"t":"no price: nothing on this site is for sale","ev":{"e":"house rule","n":"nothing on the site is for sale; no price is filed for molecules"}}]}],"extra":[{"key":"rose-absolute","id":"rose-absolute","type":"material","name":"rose absolute","href":"/material/rose-absolute","onRecord":true,"parts":0,"partsEv":{"e":"modeled","r":"accord/rose-teaching-accord · teaching_parts"},"role":"heart","roleEv":{"e":"inferred","n":"takes the place, and so the role, of 2-phenylethyl alcohol (the substitution)","r":"accord/rose-teaching-accord · role"},"vol":null,"volEv":{"n":"no volatility class on record for rose-absolute","r":"accord/rose-teaching-accord · volatility"},"desc":["honey","spicy","floral"],"descEv":{"e":"house interpretation","w":[{"t":"/materials, “The Precious Materials”","h":"/materials#precious-materials"}],"c":"C","n":"the house’s own wording on the /materials rose card; a descriptor vocabulary with a convention source is later work","r":"material/rose-absolute · descriptors","v":"honeyed, spicy, floral"},"mols":[{"id":"phenylethyl-alcohol","name":"2-phenylethyl alcohol","ev":{"e":"measured","s":["GC-1","GC-2","S11"],"q":"rose absolute and its primary component, phenylethyl alcohol","c":"A","r":"material/rose-absolute · constituents"}},{"id":"citronellol","name":"citronellol","ev":{"e":"measured","s":["GC-1","S4","S11"],"q":"Citronellol","c":"A","r":"material/rose-absolute · constituents"}},{"id":"geraniol","name":"geraniol","ev":{"e":"measured","s":["GC-1","S11"],"q":"Geraniol","c":"A","r":"material/rose-absolute · constituents"}},{"id":"beta-damascenone","name":"β-damascenone","ev":{"e":"inferred","s":["S5"],"c":"C","n":"S5 places β-damascenone in rose essential oil; no source on record names it in the absolute. The page calls it \"the dominant olfactory force\" of rose: an interpretation, not a measurement","r":"material/rose-absolute · constituents"}}],"molsNote":"no constituent share on record, so no figure","thr":null,"thrNote":"a material: thresholds are filed per molecule, not per material","regs":["eu-2023-1545"],"regEv":{"e":"documented","s":["EU-2023-1545"],"q":"366 Rosa damascena flower oil/extract; Rosa Damascena Flower Oil; Rosa Damascena Flower Extract","c":"A","n":"the house’s review: the Regulation records that apply to it (educational summaries as of 2026-09-30; not compliance advice)","r":"material/rose-absolute · regulation"},"prov":[{"t":"from Rosa damascena Mill.","href":"/botanical/rosa-damascena","ev":{"e":"perfumery convention","c":"B","n":"the absolutes in GC-1 (a commercial Turkish absolute, Isparta) and GC-2 do not name the species; the link to R. damascena is the trade’s convention for rose absolute","r":"material/rose-absolute · botanical"}},{"t":"grown in Kazanlak, Rose Valley","href":"/origin/kazanlak-bg","ev":{"e":"documented","s":["HV-1"],"q":"The Damask rose is traditionally grown in the Valley of Roses (Rozovata Dolina) in Central Bulgaria","c":"A","r":"botanical/rosa-damascena · origins"}},{"t":"grown in Taif","href":"/origin/taif-sa","ev":{"e":"inferred","s":["HV-2"],"q":"The rose-picking season in Taif begins at the end of March","c":"C","n":"HV-2 says \"rose\" and \"Taif rose\" without a species; the identification as R. damascena is inferred (Galal et al. 2022 says so, but was not used)","r":"botanical/rosa-damascena · origins"}},{"t":"no price: nothing on this site is for sale","ev":{"e":"house rule","n":"nothing on the site is for sale and other houses’ raw-material prices are left out until the sourcing phase (the decisions log; register row 2309)","r":"material/rose-absolute · price_band"}}]}],"subs":[{"for":"phenylethyl-alcohol","to":"rose-absolute","text":"Rose absolute in place of phenylethyl alcohol: the absolute’s primary component on record is phenylethyl alcohol.","ev":{"e":"inferred","s":["GC-1"],"q":"This represents the initial study to examine the antibiofilm and antivirulence capabilities of rose absolute and its primary component, phenylethyl alcohol.","c":"B","n":"inferred from the rose absolute record; the absolute brings its other constituents with it","r":"accord/rose-teaching-accord · substitutions"}}],"notes":[],"regs":{"eu-2009-1223":{"name":"Regulation (EC) No 1223/2009 on cosmetic products","body":"EU","kind":"a labelling condition (Annex III): named in the list of ingredients above a stated concentration; and prohibitions (Annex II)","href":"/regulation/eu-2009-1223","ev":{"e":"documented","s":["EU-2009-1223"],"q":"The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)(g) when its concentration exceeds: — 0,001 % in leave-on products — 0,01 % in rinse-off products","c":"A","r":"regulation/eu-2009-1223 · restriction_type"}},"eu-2023-1545":{"name":"Regulation (EU) 2023/1545 (labelling of fragrance allergens)","body":"EU","kind":"a labelling condition, extended to more fragrance allergens","href":"/regulation/eu-2023-1545","ev":{"e":"documented","s":["EU-2023-1545"],"q":"Therefore, an obligation to individually label those fragrance allergens should be introduced in Annex III to Regulation (EC) No 1223/2009 when their concentration exceeds 0,001 % in leave-on products and 0,01 % in rinse-off products.","c":"A","r":"regulation/eu-2023-1545 · restriction_type"}},"ifra-rose-ketones":{"name":"IFRA Standard: Rose ketones","body":"IFRA","kind":"RESTRICTION","href":"/regulation/ifra-rose-ketones","ev":{"e":"documented","s":["IFRA-077"],"q":"RECOMMENDATION: RESTRICTION MAXIMUM ACCEPTABLE CONCENTRATIONS IN THE FINISHED PRODUCT (%)","c":"A","r":"regulation/ifra-rose-ketones · restriction_type"}}}}