Isodecyl Isononanoate

AKA: WICKENOL 152, DERMOL 109, AEC ISODECYL ISONONANOATE, Isononanoic acid, Isodecyl ester, KAK 109, BRORPGSJXSLXKN-UHFFFAOYSA-N
Synthetic
Emollient
Skin Conditioner
Clean
OriginDerived from branched-chain alcohols and carboxylic acids within the synthetic ester chemical family. Synthesized through esterification reaction between isodecyl alcohol and isononanoic acid.
Isodecyl 3,5,5-trimethylhexanoate
Formula
C17H34O2
Mol. Weight
270.50
CAS #
59231-35-5, 41395-89-5
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Antistatic
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 558)
Not a Sensitizer
2 studies / 2 not sensitizing (CIR 558 and 623)
Concentration Guide
Leave-on1–43.5%
Rinse-off10%
0%50%100%
CIR reported use · 2012 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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