Database/Fragrance/Hexamethylindanopyran
100% petroleum · ISO 16128

Is Hexamethylindanopyran natural?

No. Synthetic polycyclic musk fragrance; manufactured via Friedel-Crafts chemistry from petrochemical precursors.

INCI nameHexamethylindanopyran
CAS1222-05-5
FormulaC18H26O · 258.4 Da
FunctionFragrance · Perfuming
FeedstockProduced by Friedel-Crafts alkylation/acylation of petrochemical aromatic and…

How we scored it

Polycyclic musk (Galaxolide-type structure); wholly synthesised from petrochemical aromatic/olefin feedstock, no natural fragment.
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

Produced by Friedel-Crafts alkylation/acylation of petrochemical aromatic and olefin feedstocks (e.g. amylene, cymene). No natural extraction route exists for this musk.

In plain English

A synthetic musk fragrance ingredient (also known as Galaxolide) that gives perfumes a sweet, musky base note. Manufactured entirely from petrochemical aromatic building blocks.

CosIng definition: Hexamethylindanopyran is the organic compound that conforms to the formula

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Structure

2D structure of Hexamethylindanopyran

4,6,6,7,8,8-hexamethyl-1,3,4,7-tetrahydrocyclopenta[g]isochromene

PubChem CID 91497 ↗

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. 2Hexamethylindanopyran. PubChem CID 91497. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HEXAMETHYLINDANOPYRAN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HEXAMETHYLINDANOPYRAN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HEXAMETHYLINDANOPYRAN