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Group of isomeric chemical compounds From Wikipedia, the free encyclopedia
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 | hemimellitene | pseudocumene | mesitylene |
| 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 | 526-73-8 | 95-63-6 | 108-67-8 |
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