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
^"Acute Exposure Guideline Levels for Selected Airborne Chemicals: Volume 13". The National Center for Biotechnology Information. ncbi.nlm.nih.gov. Retrieved 7 September 2016.
^"Trimethylbenzene - all isomers". The Scottish Environment Protection Agency. apps.sepa.org.uk. Retrieved 7 September 2016.
^"1,3,5-Trimethylbenzene". Sigma-Aldrich Co. LLC. sigmaaldrich.com. Retrieved 7 September 2016.
The trimethylbenzenes constitute a group of substances of aromatic hydrocarbons, which structure consists of a benzene ring with three methyl groups (–CH3)...
the ring. The other two isomeric trimethylbenzenes are 1,2,4-trimethylbenzene (pseudocumene) and 1,2,3-trimethylbenzene (hemimellitene). All three compounds...
trimellitic acid is a colorless solid. It is prepared by oxidation of 1,2,4-trimethylbenzene. Hemimellitic acid (benzene-1,2,3-tricarboxylic acid) Trimesic acid...
plasticizers for polyvinyl chloride. It is produced by air-oxidation of 1,2,4-trimethylbenzene. Röhrscheid, Freimund (2000). "Carboxylic Acids, Aromatic". Ullmann's...
proprietary mixtures containing mineral spirits, isopropyl alcohol, 1,2,4-trimethylbenzene or other additives. Fuel stabilizers are commonly used for small engines...
UOP-Isomar process or by transalkylation of xylene with itself or trimethylbenzene. These conversions are catalyzed by zeolites. ZSM-5 is used to facilitate...
devoid of functional groups. An example is the conversion of 1,2,4-trimethylbenzene to xylene. This chemical process usually occurs at high temperature...
studies indicated major pollutants included glycol ethers and 1,2,4-trimethylbenzene. The PERI Toxic 100 Air Polluters list for 2013 ranked the Ball Corporation...
the 19th century, Solvent naphtha has denoted a product (xylene or trimethylbenzenes) derived by fractional distillation from petroleum; these mineral...
hemimellitic acid is a colorless solid. It is prepared by oxidation of 1,2,3-trimethylbenzene. Trimellitic acid (benzene-1,2,4-tricarboxylic acid) Trimesic acid...
the formula (CH3)3C6H2Br. It is a derivative of mesitylene (1,3,5-trimethylbenzene) with one ring H replaced by Br. The compound is a colorless oil. It...
3. The treatment reduces durene (tetramethylbenzene)/isodurene and trimethylbenzene components that have high freezing points and must be minimized in...
Global Information
