Database/Perfuming/Delta-Octalactone
Route-dependent · ISO 16128

Is Delta-Octalactone natural?

It depends. Fermentation/bioconversion route from natural fatty-acid feedstock is natural; conventional chemical synthesis route uses petrochemical building blocks.

INCI nameDelta-Octalactone
CAS698-76-0
FormulaC8H14O2 · 142.20 Da
FunctionPerfuming
FeedstockProduced either by microbial bioconversion of a natural…

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
microbial bioconversion of natural hydroxy fatty acidplant-oil-derived hydroxy fatty acid1.00significant, natural-claim segment
petrochemical chemical synthesispetrochemical aldehydes/ketones0.00significant, generic perfumery
Ask your supplier. A batch-specific certificate of origin or bio-based carbon test (ASTM D6866) settles which route applies.

How we scored it

Delta-lactone, one carbon shorter than delta-nonalactone; same dual-route pattern: natural bioconversion of natural hydroxy-fatty-acid vs petrochemical synthesis.
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 either by microbial bioconversion of a natural hydroxy fatty acid for 'natural' claims, or by conventional petrochemical synthesis for generic perfumery. Dominant route uncertain for cosmetic use.

In plain English

A coconut-creamy fragrance ingredient that can be made naturally through fermentation of plant fats, or fully synthesised from petrochemicals. Used in small amounts to add a soft, creamy note.

Natural alternatives with the same function

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Structure

2D structure of Delta-Octalactone

6-propyloxan-2-one

PubChem CID 12777 ↗

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. 2Delta-Octalactone. PubChem CID 12777. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3DELTA-OCTALACTONE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4DELTA-OCTALACTONE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=DELTA-OCTALACTONE