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
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
Final Report on the Safety Assessment of Pentaerythritol Rosinate (Amended report IJT 17(S4) 1998)
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Pentaerythrityl Tetrabenzoate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Allergic contact cheilitis from pentaerythritol rosinate in a lipstick.
Ichihashi K, Soga F, Katoh N, Kishimoto S
Contact dermatitis, 2003
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR