How we scored it
C10H18O4 decanedioic acid; all 10 carbons derive from castor-oil ricinoleic acid via alkaline cleavage (cf. azelaic acid from oleic acid); no petrochemical fragment.
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 industrially by alkaline fusion of ricinoleic acid from castor oil, an oleochemical process. No significant petrochemical synthesis route is used commercially; supplier confirmation recommended.
In plain English
A dicarboxylic acid made from castor oil, used to help buffer the pH of a product. It is produced from a plant oil through a chemical splitting process, not from petroleum.
Structure
decanedioic acid
References
- 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.
- 2Sebacic Acid. PubChem CID 5192. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3SEBACIC ACID. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4SEBACIC ACID. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SEBACIC%20ACID