Stearyl alcohol

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Stearyl alcohol[1]
Simplified structural formula
CAS number 112-92-5 YesY
PubChem 8221
ChemSpider 7928 YesY
ChEBI CHEBI:32154 YesY
Jmol-3D images Image 1
Molecular formula C18H38O
Molar mass 270.49 g/mol
Appearance White solid
Density 0.812 g/cm3
Melting point 59.4 to 59.8 °C (138.9 to 139.6 °F; 332.5 to 332.9 K)
Boiling point 210 °C (410 °F; 483 K) at 15 mmHg (~2.0 kPa)
Solubility in water 1.1 x 10−3 mg/L
Flash point 185 °C (365 °F; 458 K)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references

Stearyl alcohol (also known as octadecyl alcohol or 1-octadecanol) is an organic compound with the formula CH3(CH2)16CH2OH. It is classified as a fatty alcohol. It takes the form of white granules or flakes, which are insoluble in water. It has a wide range of uses as an ingredient in lubricants, resins, perfumes and cosmetics. It is used as an emollient, emulsifier, and thickener in ointments of various sorts, and is widely used as a hair coating in shampoos and hair conditioners. It has also found application as an evaporation suppressing monolayer when applied to the surface of water.[2]

Stearyl alcohol is prepared from stearic acid or some fats by the process of catalytic hydrogenation. It has low toxicity.[3]


  1. ^ Merck Index, 11th Edition, 8762.
  2. ^ Prime, E. L., Tran, D. N., Plazzer, M., Sunartio, D., Leung, A. H., Yiapanis, G., ... & Solomon, D. H. (2012). Rational design of monolayers for improved water evaporation mitigation. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 415, 47-58.
  3. ^ Klaus Noweck, Wolfgang Grafahrend, "Fatty Alcohols" in Ullmann's Encyclopedia of Industrial Chemistry 2006, Wiley-VCH, Weinheim. doi:10.1002/14356007.a10 277.pub2[link invalid/outdated]

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