Olefins

From GAWDAwiki

Olefins are a group of hydrocarbons with general formula C_nH_2n. They are also known as alkenes and include ethylene, C₂H₄, and propylene, C₃H₆.^[1]

References

1. http://www.bocindustrial.co.uk/bocindustrial/technical/glossary/a.asp