Pentaerythrityl Tetrabenzoate

AKA: Pentaerythritol tetrabenzoate, Uniplex 552, CCRIS 5971, 2, 2-Bis((benzoyloxy)methyl)-1, 3-propanediol dibenzoate, Pentaerythritol
Synthetic
Emollient
Skin Conditioner
Not Clean
OriginSynthesized from pentaerythritol and benzoic acid, both petroleum-derived organic compounds. Produced through esterification reaction, where benzoic acid combines with pentaerythritol under catalytic conditions.
Benzoic acid, tetraester with 2,2-bis(hydroxymethyl)-1,3-propanediol
Solubility less than 1 mg/mL at 66 °F (NTP, 1992)
Formula
C33H28O8
Mol. Weight
552.60
CAS #
4362-18-1
Form
Powder
State
2,2-bis((benzoyloxy)methyl)dibenzoate-1,3-propanediol is a cream-colored solid. (NTP, 1992)
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
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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