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Pentaerythrityl Tetraethylhexanoate
AKA “Pentaerythritol tetra(2-ethylhexanoate), DUB PTO, KAK PTO, EINECS 230-743-8, TRIVENT PE-48, XJ7052W897, HEST P-4-O, SALACOS 5408, NIKKOL PENTALAN-408”
Emollient
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Ingredient Facts
Pentaerythrityl tetraethylhexanoate
AKA: Pentaerythritol tetra(2-ethylhexanoate), DUB PTO, KAK PTO, EINECS 230-743-8, TRIVENT PE-48, XJ7052W897, HEST P-4-O, SALACOS 5408, NIKKOL PENTALAN-408
Emollient · Emollient · EWG: 1
Synthetic
Emollient
Skin Conditioner
Clean
2,2-bis[[(2-Ethyl-1-oxohexyl)oxy]methyl]propane-1,3-diyl bis(2-ethylhexanoate)
Formula
C37H68O8
Mol. Weight
640.90
CAS #
7299-99-2
Form
Powder
State
Pellets or Large Crystals; Liquid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Viscosity Controlling
Locks In Moisture
Traditional Use
A synthetic ester combining pentaerythritol with ethylhexanoic acid, developed in the late 20th century as a cosmetic emollient and texture modifier.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
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