Ethylene

Hydrocarbon compound (H2C=CH2)

Ethylene

Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula C2H4 or H2C=CH2. It is a colourless, flammable gas with a faint "sweet and musky" odour when pure. It is the simplest alkene (a hydrocarbon with carbon–carbon double bonds).

From Wikipedia, under CC BY-SA. More on occurri.