maze123

Thanks for the answer, got it now.

When naming chemicals, “an” stand for c-c bonds and “en” stands c=c double bonds. For example, Propene means 3 carbon atoms consisting of double bonds within the structure Prop – 3 carbon atoms en - double bond I saw in an article, the following name with the structure – cyclohexane : CH2 - CH2- CH2 -CH2 -CH2- CH2 “an” means no double bonds. Doesn’t the above structure have double bonds ? shouldn’t it be cyclohexene ?