Hexane is an organic compound made of carbon and hydrogen that is most commonly isolated as a byproduct of petroleum and crude oil refinement. At room temperature it is an odorless, colorless liquid, and it has many uses in industry. It is a very popular solvent, for instance, and is often used in industrial cleaners; it is also frequently used to extract oils from vegetables, particularly soybeans. Most vehicle-grade gasoline contains it, too. Though most experts say the compound is non-toxic and presents only low risks to humans and animals, there is still a great deal of controversy in many places when it comes to how often it is included, sometimes without full disclosure, in foods and consumer products.