Dilauryl Thiodipropionate
AKA “Propanoic acid, 3, 3'-thiobis-, didodecyl ester, Propanoic acid 3, 3'-thiobis(didodecyl) ester, PTDE, RefChem:587954, 123-28-4, Didodecyl 3, 3'-thiodipropionate, Lusmit, Dltdp, Tyox B”
Antioxidant
Ingredient Facts
Dilauryl thiodipropionate
AKA: Propanoic acid, 3, 3'-thiobis-, Didodecyl ester, Propanoic acid 3, 3'-thiobis(didodecyl) ester, PTDE, RefChem:587954, 123-28-4, Didodecyl 3, 3'-thiodipropionate, Lusmit, Dltdp, Tyox B
Antioxidant · Antioxidant · EWG: 1
Synthetic
Antioxidant
Clean
Didodecyl 3,3'-thiodipropionate
Solubility Soluble in most organic solvents
Formula
C30H58O4S
Mol. Weight
514.80
CAS #
123-28-4
Form
Liquid
State
Pellets or Large Crystals; Dry Powder, Pellets or Large Crystals, Liquid; Dry Powder; Other Solid
See origin →
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Neutralizes Free Radicals
Traditional Use
A synthetic antioxidant developed in the 20th century. Used in cosmetics to prevent oxidation and rancidity of oils and fats in formulations.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Final Report on the Safety Assessment of Dilauryl Thiodipropionate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Dilauryl Thiodipropionate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Dilauryl Thiodipropionate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR