Database/Perfuming/Rhodinol
Route-dependent · ISO 16128

Is Rhodinol natural?

It depends. Rhodinol is the natural citronellol-rich alcohol from geranium oil; synthetic grades are also sold under the name.

INCI nameRhodinol
CAS6812-78-8
FormulaC10H20O · 156.26 Da
FunctionPerfuming
FeedstockFractionated from geranium or rose oil, or synthesised.

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
essential-oil isolaterhodinol fraction isolated from geranium or rose oil1.00Every carbon from the essential oil.
syntheticcitronellol made from petrochemical citral, sold under the rhodinol name0.00No natural carbon.
Ask your supplier. A batch-specific certificate of origin or bio-based carbon test (ASTM D6866) settles which route applies.

How we scored it

Rhodinol (mainly (S)-citronellol) C10H20O 156.3 Da is isolated from geranium oil (1.0) or made synthetically (0.0). Headline shows the best route, as for Citronellol and Geraniol.
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

Fractionated from geranium or rose oil, or synthesised.

In plain English

A rose-like fragrance ingredient distilled from geranium or citronella oil. It's the natural alcohol fraction of these plant oils, used to add a floral scent.

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Structure

2D structure of Rhodinol

(3S)-3,7-dimethyloct-7-en-1-ol

PubChem CID 81263 ↗

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. 2Rhodinol. PubChem CID 81263. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3RHODINOL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4RHODINOL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=RHODINOL