Ethanol is a clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in alcoholic beverages. Indeed, ethanol has widespread use as a solvent of substances intended for human contact or consumption, including scents, flavorings, colorings, and medicines. Ethanol has a depressive effect on the central nervous system and because of its psychoactive effects, it is considered a drug. Ethanol has a complex mode of action and affects multiple systems in the brain, most notably it acts as an agonist to the GABA receptors. Death from ethanol consumption is possible when blood alcohol level reaches 0.4%. A blood level of 0.5% or more is commonly fatal. Levels of even less than 0.1% can cause intoxication, with unconsciousness often occurring at 0.3
Solubility greater than or equal to 100 mg/mL at 73 °F (NTP, 1992)
Formula
C2H6O
Mol. Weight
46.07
CAS #
64-17-5
Form
Liquid
State
Ethanol with a small amount of an adulterant added so as to be unfit for use as a beverage.
See origin →
Functions
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Controls excess oil
Minimizes pores
Traditional Use
Ethanol has been used as a preservative and solvent in cosmetics since at least the 15th century when alcohol distillation became widespread in Europe. Became the standard skincare solvent and preservative in modern cosmetics by the 19th century.