Database/Perfuming/Tetrahydrolinalool
Route-dependent · ISO 16128

Is Tetrahydrolinalool natural?

It depends. Tetrahydrolinalool is fully hydrogenated linalool. It is natural origin when the linalool is made from α-pinene in pine turpentine, and petrochemical when the linalool is built from acetone and acetylene or isobutylene.

INCI nameTetrahydrolinalool
CAS78-69-3
FunctionPerfuming
FeedstockMade by hydrogenating linalool or dehydrolinalool. Most of…

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
Hydrogenated petrochemical linaloollinalool built from methylheptenone (acetone and acetylene, or isobutylene and formaldehyde), fully hydrogenated0.00majority
Hydrogenated pine-derived linaloollinalool made from α-pinene in pine turpentine, fully hydrogenated1.00minority
Ask your supplier. A batch-specific certificate of origin or bio-based carbon test (ASTM D6866) settles which route applies.

How we scored it

Linalool C10H18O plus hydrogen (hydrogen counts for nothing) = 158.28 Da. Linalool made from pine α-pinene: 1.00; linalool built from petrochemical methylheptenone: 0.00. Routes not averaged.
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

Made by hydrogenating linalool or dehydrolinalool. Most of that linalool is built from petrochemical methylheptenone; linalool made from α-pinene in pine turpentine gives the natural-origin route.

In plain English

A fragrance ingredient with a soft floral, lily-of-the-valley scent. It is made from linalool, which can be pine-derived or built from petrochemicals, so its natural-origin score depends on the supplier.

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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. 2TETRAHYDROLINALOOL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3TETRAHYDROLINALOOL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TETRAHYDROLINALOOL