Pentaerythrityl Tetraisononanoate
AKA “93803-89-5, UNII-8NR9444E9U, 8NR9444E9U, EINECS 298-364-0, EC 298-364-0, PELEMOL P 49, 2, 2-Bis(((1-oxoisononyl)oxy)methyl)-1, 3-propanediyl diisononanoate, 3-propanediyl isononanoate, PENTAERYTHRITOL TETRAISONANOATE
Emollient
Ingredient Facts
Pentaerythrityl tetraisononanoate
AKA: 93803-89-5, UNII-8NR9444E9U, 8NR9444E9U, EINECS 298-364-0, EC 298-364-0, PELEMOL P 49, 2, 2-Bis(((1-oxoisononyl)oxy)methyl)-1, 3-propanediyl diisononanoate, 3-propanediyl isononanoate, PENTAERYTHRITOL TETRAISONANOATE
Emollient · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Not Clean
2,2-bis[[(1-Oxoisononyl)oxy]methyl]-1,3-propanediyl diisononanoate
Formula
C41H76O8
Mol. Weight
697.00
CAS #
93803-89-5
Form
Liquid
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 combining pentaerythritol with isononanoic acid, developed in the 20th century as a cosmetic emollient with a lightweight texture profile.
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
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR