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Pentaerythrityl Tetrabenzoate
AKA “Pentaerythritol tetrabenzoate, Uniplex 552, CCRIS 5971, EINECS 224-079-8, U7L44GIS4O, 2, 2-Bis((benzoyloxy)methyl)-1, 3-propanediol dibenzoate, Pentaerythritol, tetrabenzoate, NSC 166502, BRN 3513249”
Emollient
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Ingredient Facts
Pentaerythrityl tetrabenzoate
AKA: Pentaerythritol tetrabenzoate, Uniplex 552, CCRIS 5971, EINECS 224-079-8, U7L44GIS4O, 2, 2-Bis((benzoyloxy)methyl)-1, 3-propanediol dibenzoate, Pentaerythritol, NSC 166502, BRN 3513249
Emollient · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Not Clean
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)
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
A synthetic ester created by combining pentaerythritol with benzoic acid, developed in the 20th century as a cosmetic film-former and binder.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR