Ethane
Ethane (US: ETH-ayn, UK: EE-thayn) is a naturally occurring organic chemical compound with chemical formula C2H6. At standard temperature and pressure, ethane is a colorless, odorless gas.
From Wikipedia
Ethane (US: ETH-ayn, UK: EE-thayn) is a naturally occurring organic chemical compound with chemical formula C2H6. At standard temperature and pressure, ethane is a colorless, odorless gas.