Diisononyl Ether

Diisononyl Ether 1
molecular structure · PubChem CID 13603457
AKA: Isononane, Nikkol dine, 101462-48-0, Diisononyl ether [INCI]
Synthetic
Humectant
Not Clean
OriginSynthesized from nonanol (a nine-carbon alcohol) through ether linkage formation via chemical synthesis. Produced by reacting nonanol with appropriate catalysts to form the diisononyl ether compound.
Diisononyl Ether is a cosmetic ingredient used as humectant. Also known as Isononane. Assessed as safe by the CIR.
Formula
C18H38O
Mol. Weight
270.50
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️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
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2026
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR