Butane is a hydrocarbon that contains four carbon atoms.
Butane is a colorless gas at atmospheric pressure and at room temperature.
Butane is used as a fuel in cigarette lighters and the propellant in aerosols and refrigerants.
It is highly flammable.
Structural formula:
The structural formula is a formula that gives information about the position of atoms that is given in a graphical representation in a three-dimensional space.
The butane should contain four carbon in a straight chain as the root word is but-. and the suffix -ane suggests that it is an alkane
When the valencies of carbon are satisfied with hydrogen, the butane structure can be easily drawn as below: