murphyDiisodecyl Adipate
AKA: 27178-16-1, Hexanedioic acid, Diisodecyl ester, Adipic acid, Diisodecyl hexanedioate, HALLSTAR DIDA, DUB DIDA, 1, 6-diisodecyl ester
Synthetic
Emollient
Solvent
Skin Conditioner
Not Clean
OriginSynthesized from adipic acid and isodecyl alcohol, both petroleum-derived or synthetic chemical compounds. Produced through esterification, combining adipic acid with isodecyl alcohol using acid catalysts.
Diisodecyl adipate
Formula
C26H50O4
Mol. Weight
426.70
CAS #
27178-16-1
Form
Liquid
State
Pellets or Large Crystals; Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Plasticiser
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.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Locks In Moisture
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 528)
Concentration Guide
CIR's newest survey reports no concentration of use.
CIR · report published 2012
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR