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
Refreshing Water Mist
COOLA
Sunlit Essentials Set
Indie Lee
Tulip Dew Drops
Bloom Effects
Radiance Reset
Bloom Effects
Everyday Radiance Essentials
Bloom Effects
Golden Hour Dry Oil
Ursa Major
Retinoic Nutrient Face Oil - 4ML
– Tata Harper Skincare
Tata Harper Skincare
Retinoic Nutrient Face Oil
Tata Harper Skincare
Crème Riche & Retinoic Nutrient Face Oil
Tata Harper Skincare
Bio-Shield Face Oil - 4ML
– Tata Harper Skincare
Tata Harper Skincare
Revealer Extra Bright
Kosas
Glow I.V.
Kosas
Hydra Restore Eye Serum
Credo Beauty
Retinoic Nutrient Face Oil - 4ML
Credo Beauty
Golden Hour Dry Oil
Credo Beauty
Eyeshadow Last Call
MOB Beauty
Color Haze
ILIA Beauty
Revealer Concealer
Kosas
Revealer Skin-Improving Foundation SPF 25
Kosas
Bronzing Drops
Indie Lee
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR