Distearyl Thiodipropionate

AKA: Dioctadecyl 3, 3'-thiodipropionate, Dioctadecyl thiodipropionate, Plastanox STDP, Antioxidant STDP, Distearyl 3, Cyanox STDP, Advastab 802, Advastab PS 802
Plant-Derived
Antioxidant
Not Clean
OriginDerived from long-chain fatty acids, typically from coconut or palm oil sources through synthetic modification. Produced through esterification of thiodipropionic acid with stearyl alcohol via catalytic synthesis.
Dioctadecyl 3,3'-thiodipropionate
Solubility Insoluble in water
Formula
C42H82O4S
Mol. Weight
683.20
CAS #
693-36-7
Form
Wax
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Neutralizes Free Radicals
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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