Database/Emollient/Isostearyl Benzoate
Mostly natural · ISO 16128

Is Isostearyl Benzoate natural?

Mostly. Ester of a natural branched C18 fatty alcohol with benzoic acid, a petrochemical aromatic acid from toluene oxidation.

INCI nameIsostearyl Benzoate
CAS34364-24-4
FormulaC25H42O2 · 374.6 Da
FunctionEmollient · Hair Conditioning
FeedstockIsostearyl Benzoate esterifies isostearyl alcohol, an oleochemical branched…

How we scored it

Isostearyl (C18, oleochemical alcohol) fragment 269.5 Da natural + benzoate (toluene-derived) fragment 105.1 Da petrochemical; 269.5/374.6 = 0.72.
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

Isostearyl Benzoate esterifies isostearyl alcohol, an oleochemical branched fatty alcohol, with benzoic acid, made industrially from petrochemical toluene. The alcohol portion dominates the molecule's mass.

In plain English

An ester made from a branched fatty alcohol and benzoic acid, a petrochemical building block. Used as an emollient in skin and hair products.

Natural alternatives with the same function

Structure

2D structure of Isostearyl Benzoate

16-methylheptadecyl benzoate

PubChem CID 9951506 ↗

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. 2Isostearyl Benzoate. PubChem CID 9951506. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3ISOSTEARYL BENZOATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4ISOSTEARYL BENZOATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ISOSTEARYL%20BENZOATE