Database/Fragrance/Nopyl Acetate
Mostly natural · ISO 16128

Is Nopyl Acetate natural?

Mostly. Ten carbons of nopol come from pine beta-pinene, but the formaldehyde-derived carbon added in the Prins reaction and the acetyl cap are petrochemical.

INCI nameNopyl Acetate
CAS128-51-8
FormulaC13H20O2 · 208.30 Da
FunctionFragrance
FeedstockBeta-pinene from pine turpentine reacts with paraformaldehyde to…

How we scored it

Pinene skeleton C10H15 135 Da (pine beta-pinene) natural; CH2O 30 Da (formaldehyde) + acetyl C2H3O 43 Da (acetic anhydride) petrochemical; 135.2 / 208.3 = 0.65.
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

Beta-pinene from pine turpentine reacts with paraformaldehyde to give nopol, which is acetylated with acetic anhydride. Formaldehyde and acetyl are made from natural gas and petroleum feedstocks.

In plain English

A fragrance ingredient with a fresh, woody, slightly fruity scent, used in perfumes, soaps and scented products. It is made from beta-pinene in pine turpentine reacted with formaldehyde, then acetylated.

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Structure

2D structure of Nopyl Acetate

2-[(1R,5S)-6,6-dimethyl-2-bicyclo[3.1.1]hept-2-enyl]ethyl acetate

PubChem CID 929336 ↗

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. 2Nopyl Acetate. PubChem CID 929336. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3NOPYL ACETATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4NOPYL ACETATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=NOPYL%20ACETATE