Isopropyl Arachidate

AKA: Isopropyl icosanoate, 26718-90-1, Propan-2-yl icosanoate, Eicosanoic acid, 1-methylethyl ester, Isopropyl eyster, 1-Methylethyl eicosanoate
Synthetic
Emollient
Skin Conditioner
Not Clean
OriginDerived from arachidic acid (a saturated fatty acid) and isopropyl alcohol through esterification synthesis. Produced by chemically combining arachidic acid with isopropanol under catalytic conditions to form the ester.
The CIR Expert Panel concluded that the alkyl esters, listed subsequently, are safe in the present practices of use and concentration described in this safety assessment when formulated to be non-irritating.
Formula
C23H46O2
Mol. Weight
354.60
CAS #
26718-90-1
Form
Oil
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
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-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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