Database/Fragrance/Dihydrocitronellol
Route-dependent · ISO 16128

Is Dihydrocitronellol natural?

It depends. Can be hydrogenated from pine-derived citronellal or citronellol (natural origin) or from citral built from petrochemical isobutylene; neither route clearly dominates.

INCI nameDihydrocitronellol
CAS106-21-8
FormulaC10H22O · 158.28 Da
FunctionFragrance · Perfuming
FeedstockEither hydrogenation of citronellal or citronellol made from…

Why the score varies

This ingredient is made commercially by more than one route, and ISO 16128 scores the feedstock actually used. Without a supplier certificate of origin the value cannot be claimed.

RouteFeedstockNOIShareNotes
pine-chemical hydrogenationturpentine-derived citronellal/citronellol1.00unclear, est. ~50%
petrochemical citral hydrogenationcitral built from isobutylene and formaldehyde0.00unclear, est. ~50%
Ask your supplier. A batch-specific certificate of origin or bio-based carbon test (ASTM D6866) settles which route applies.

How we scored it

Saturated C10 fragrance alcohol; whole-molecule route choice decides origin. Pine-turpentine route 1.00; isobutylene-based citral route 0.00. Headline shows the best route (1.00), as for every route-dependent entry on the site.
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

Either hydrogenation of citronellal or citronellol made from pine turpentine, a natural route, or of citral built from petrochemical isobutylene. Market share between the two routes is not clearly dominant.

In plain English

A fragrance alcohol with a rosy, citrus-like scent, related to citronellol found in rose and citronella oils. Can be made by modifying natural terpenes or built up synthetically, depending on the supplier.

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Structure

2D structure of Dihydrocitronellol

3,7-dimethyloctan-1-ol

PubChem CID 7792 ↗

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. 2Dihydrocitronellol. PubChem CID 7792. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3DIHYDROCITRONELLOL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4DIHYDROCITRONELLOL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=DIHYDROCITRONELLOL