Database/Fragrance/Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde
Mostly natural · ISO 16128

Is Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde natural?

Mostly. The myrcenol part is made from pine-turpentine myrcene and water, both natural origin; the acrolein part that forms the aldehyde ring comes from petrochemical propylene.

INCI nameHydroxyisohexyl 3-Cyclohexene Carboxaldehyde
CAS31906-04-4
FormulaC13H22O2 · 210.31 Da
FunctionFragrance · Perfuming
FeedstockMyrcene from pine turpentine is hydrated to myrcenol,…

How we scored it

Myrcenol part C10H18O 154.25 Da (myrcene from pine turpentine plus water, natural) + acrolein part C3H4O 56.06 Da (from petrochemical propylene); the Diels–Alder step loses no atoms: 154.25/210.32 = 0.73.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Myrcene from pine turpentine is hydrated to myrcenol, which is joined to acrolein (made from petrochemical propylene) in a Diels–Alder reaction. No route makes the myrcenol part from petroleum.

In plain English

A fragrance ingredient (also called Lyral) with a floral, lily-of-the-valley scent. Most of it is myrcenol made from pine turpentine; the rest is a small aldehyde made from petrochemicals.

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Structure

2D structure of Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde

4-(4-hydroxy-4-methylpentyl)cyclohex-3-ene-1-carbaldehyde

PubChem CID 91604 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde. PubChem CID 91604. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HYDROXYISOHEXYL%203-CYCLOHEXENE%20CARBOXALDEHYDE