C4H

C4H refers to a mixture of light hydrocarbons with the general formula C4Hn, where ( n ) is the number of hydrogen atoms per molecule. Examples of such hydrocarbons include:

• Butane (C4H10): A saturated hydrocarbon (alkane) commonly used as a fuel.
• Butylene (C4H8): An unsaturated hydrocarbon (alkene) used in the production of polymers and other chemicals.

These hydrocarbons are typically gaseous at room temperature and are used in various industrial applications, including as fuel, refrigerants, and feedstock for chemical synthesis.