Cymenes

The cymenes (methylcumenes, isopropyltoluenes) constitute a group of substances of aromatic hydrocarbons, which structure consists of a benzene ring with an isopropyl group (–CH(CH₃)₂), and a methyl group (–CH₃) as a substituent. Through their different arrangement, they form three structural isomers with the molecular formula C₁₀H₁₄. They also belong to the group of C₄-benzenes. The best-known isomer is the p-Cymene, it occurs in nature and is one of the terpenes.

Cymenes
name	o-Cymene	m-Cymene	p-Cymene
structural formula	110px	110px	90px
CAS-number	527-84-4	535-77-3	99-87-6