Undecane
AKA “N-UNDECANE, Hendecane, NSC-66159, DTXCID301689, RefChem:6337”
Synthetic
Ingredient Facts
Undecane
AKA: N-UNDECANE, Hendecane, NSC-66159, DTXCID301689, RefChem:6337
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Synthetic
Clean
A lightweight conditioning agent that softens skin and hair while helping product formulas glide on smoothly and feel silky.
Solubility In water, 0.014 mg/L at 25 deg (critical evaluation of all available data)
Formula
C11H24
Mol. Weight
156.31
CAS #
1120-21-4
Form
Oil
State
Undecane appears as a colorless liquid. Insoluble in water and less dense than water. Used to make other chemicals.
See origin →
Functions
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.
Softens & Smooths
Smooths and softens skin
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR