Dimyristyl Thiodipropionate

AKA: 16545-54-3, Propanoic acid, 1'-ditetradecyl ester, Ditetradecyl 3, 3'-thiobispropionate, Ditetradecyl ester, Dimyristyl 3, 3'-Thiodipropionate, 3'-thiobispropanoate, SUMILIZER TPM
Synthetic
Antioxidant
Not Clean
Ditetradecyl 3,3'-thiobispropionate
Formula
C34H66O4S
Mol. Weight
571.00
CAS #
16545-54-3
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 compound developed as an antioxidant and stabilizer in cosmetic products. Created in the mid-20th century to prevent oxidative degradation of oils and fats.
EWG
4
CIR
Reviewed by CIR
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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