Ethane
Ethane (US: / ˈ ɛ θ eɪ n / ETH -ayn, UK: / ˈ iː -/ EE -) is a naturally occurring organic chemical compound with chemical formula C H. At standard temperature and pressure, ethane is a colorless, odorless gas. Like many hydrocarbons, ethane is isolated on an industrial scale from natural gas and as a petrochemical by-product of petroleum refining. Its chief use is as feedstock for ethylene production.

Related compounds may be formed by replacing a hydrogen atom with another functional group; the ethane moiety is called an ethyl group. For example, an ethyl group linked to a hydroxyl group yields ethanol, the alcohol in beverages.
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