C4H10 is the chemical formula for butane, a hydrocarbon that belongs to the alkane family. It consists of four carbon atoms and ten hydrogen atoms, making it a saturated compound. Butane is commonly found in two isomers: n-butane and isobutane, which have different structural arrangements but the same molecular formula. Butane is primarily used as a fuel in lighters and portable stoves, as well as a refrigerant in some cooling systems. It is also a key component in the production of petrochemicals and is often used in the manufacture of plastics and synthetic rubber.