Trimethylbenzenes

The trimethylbenzenes constitute a group of substances of aromatic hydrocarbons, which structure consists of a benzene ring with three methyl groups (–CH3) as a substituent.[1][2] Through their different arrangement, they form three structural isomers with the molecular formula C9H12. They also belong to the group of C3-benzenes. The best-known isomer is mesitylene.[3]

Trimethylbenzenes
Common name hemimellitenepseudocumenemesitylene
Systematic names 1,2,3-trimethylbenzene
vic.-trimethylbenzene		1,2,4-trimethylbenzene
asym.-trimethylbenzene		1,3,5-trimethylbenzene
sym.-trimethylbenzene
Structural formula
CAS Registry Number 526-73-895-63-6108-67-8

References
  1. "Acute Exposure Guideline Levels for Selected Airborne Chemicals: Volume 13". The National Center for Biotechnology Information. ncbi.nlm.nih.gov. Retrieved 7 September 2016.
  2. "Trimethylbenzene - all isomers". The Scottish Environment Protection Agency. apps.sepa.org.uk. Retrieved 7 September 2016.
  3. "1,3,5-Trimethylbenzene". Sigma-Aldrich Co. LLC. sigmaaldrich.com. Retrieved 7 September 2016.
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