PEG-2 Diisononanoate
molecular structure · PubChem
AKA: Diethylene glycol dipelargonate, Diethylene glycol dinonanoate, Nonanoic acid, Oxydi-2, 1-ethanediyl ester, Oxydiethylene dinonanoate, PLASTOLEIN 9055, 1'-(oxydi-2, 1-ethanediyl) ester, PELARGONIC ACID DIETHYLENE GLYCOL ESTER
Synthetic
Cleanser
Emulsifier
Not Clean
OriginPEG-2 Diisononanoate is synthesized from polyethylene glycol and diisononanoic acid, both petroleum-derived chemicals. It is produced through esterification, where polyethylene glycol reacts with diisononanoic acid under catalytic conditions.
Poly(oxy-1,2-ethanediyl), .alpha.-(1-oxoisononyl)-.omega.-[(1-oxoisononyl)oxy]- (2 mol EO average molar ratio)
Formula
C22H42O5
Mol. Weight
386.60
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Reduces Inflammation
Wound Healing
Fights Bacteria
Mixes Oil & Water
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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