Database/Perfuming/Cinnamyl Propionate
Route-dependent · ISO 16128

Is Cinnamyl Propionate natural?

It depends. Propionic acid is petrochemical; cinnamyl alcohol is mostly benzaldehyde-derived with a smaller natural-isolate supply.

INCI nameCinnamyl Propionate
CAS103-56-0
FormulaC12H14O2 · 190.24 Da
FunctionPerfuming
FeedstockDominant route esterifies synthetic cinnamyl alcohol with petrochemical…

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
synthetic cinnamyl alcohol + propionic acidbenzaldehyde + propylene-derived propionic acid0.00~70%
natural cinnamyl alcohol + propionic acidstorax/cassia cinnamyl alcohol + petrochemical propionic acid0.70~30%
Ask your supplier. A batch-specific certificate of origin or bio-based carbon test (ASTM D6866) settles which route applies.

How we scored it

Cinnamyl-O C9H9O 133.2Da + propionyl C3H5O 57.1Da(always petrochemical) → synthetic-cinnamyl route 0/190.2=0.0; natural-cinnamyl route 133.2/190.2=0.70
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

Dominant route esterifies synthetic cinnamyl alcohol with petrochemical propionic acid. A minor route uses natural cinnamyl alcohol isolated from storax or cassia oil.

In plain English

A fruity-smelling fragrance ester. Typically made from synthetic cinnamyl alcohol derived from petrochemical benzaldehyde and propionic acid; a naturally-sourced cinnamyl alcohol version also exists.

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Structure

2D structure of Cinnamyl Propionate

[(E)-3-phenylprop-2-enyl] propanoate

PubChem CID 5355850 ↗

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. 2Cinnamyl Propionate. PubChem CID 5355850. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CINNAMYL PROPIONATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CINNAMYL PROPIONATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CINNAMYL%20PROPIONATE