Mesitylene (1,3,5-Trimethylbenzene) 98% / 99% / 99.8% CAS No. 108-67-8 Industrial & Pharmaceutical Grade

Mesitylene, available in 98%, 99%, and 99.8% concentrations, is produced via advanced fractionation and purification technologies from petroleum refining streams or coal tar distillation . It features excellent solvency power, moderate volatility, and exceptional chemical stability as a symmetrically trimethyl-substituted aromatic hydrocarbon . As an important organic intermediate and solvent, it is widely used in the production of dyes, resins, antioxidants, and pharmaceutical intermediates . Its high purity and consistent isomer composition make it ideal for critical applications requiring precise chemical properties. Each batch is rigorously tested using GC analysis to ensure consistent quality meeting industrial and pharmaceutical standards .

Scope of Application
· Used as a key intermediate in the production of trimesic acid (1,3,5-benzenetricarboxylic acid) through oxidation, which is further processed into high-performance plasticizers, epoxy resin curing agents, and polyester resin stabilizers ;
· Acts as a precursor for 2,4,6-trimethylaniline, which is used in the production of reactive dyes including Reactive Brilliant Blue K-3R and other dyestuffs ;
· Functions as a solvent and developer for photopatternable silicones in the electronics industry ;
· Widely applied as a solvent in paints, coatings, and printing ink formulations requiring slow evaporation rates ;
· Serves as an internal standard in nuclear magnetic resonance (NMR) spectroscopy due to its three equivalent protons providing a sharp singlet signal ;
· Used as a ligand in organometallic chemistry for the synthesis of metal complexes ;
· Acts as an additive and component in aviation gasoline blends to improve octane rating and combustion characteristics ;
· Functions as an analytical standard for gas chromatography (GC) in environmental and biological sample analysis ;
· Used in the production of antioxidants, epoxy firming agents, and UV oxidation stabilizers for plastics ;
· Serves as a laboratory reagent and solvent for organic synthesis and chromatographic applications .

Inquiry

Write a Review

Product Features

Mesitylene is manufactured using advanced fractionation and purification technologies, ensuring consistent quality and precise isomer control. The product features excellent solvency for aromatic and non-polar compounds, with a boiling point of 163-166°C providing optimal processing characteristics . Its molecular weight of 120.19 g/mol and specific gravity of 0.864-0.868 g/mL at 20°C offer predictable handling properties . The product exhibits complete miscibility with ethanol, ether, benzene, acetone, and petroleum ether, while being practically insoluble in water (2.9 g/L at 20°C) .

Packaging and Transportation

· Available in epoxy-lined steel drums (170kg), IBC totes, and ISO tanks ;

· Classified as flammable liquid (Class 3), comply with all transportation safety regulations including UN2325 classification with Packing Group III ;

Safety and Storage

· Store in a cool, well-ventilated warehouse away from kindling, heat sources, and direct sunlight ;

· Maintain storage temperature between 2-30°C (ambient conditions) in a dry environment ;

· Keep containers tightly sealed to prevent evaporation and contamination ;

· Avoid storage with strong oxidizing agents and nitric acid, as violent reactions may occur ;

Product display

精油瓶透明液体3 (2)

三甲苯

精油瓶透明液体2

FAQ

What are the main differences between the available purity grades of Mesitylene?

The 98% grade is suitable for most industrial applications including solvent use, resin production, and general chemical synthesis, offering cost-effectiveness. The 99% grade provides higher purity for sensitive applications such as pharmaceutical intermediate synthesis and dye manufacturing where precise composition is critical. The 99.8% analytical standard grade is specifically purified for GC and HPLC applications, with certified impurity profiles and documented traceability for quality control and research applications .

What are the primary industrial applications of Mesitylene?

Mesitylene is primarily used as a raw material for the production of trimesic acid (1,3,5-benzenetricarboxylic acid), which is essential for high-performance plasticizers and polymer stabilizers . It is also widely used as a precursor for 2,4,6-trimethylaniline in the dye industry , as a solvent in electronics manufacturing for photopatternable silicones , and as an aviation gasoline additive .

What are the environmental considerations for Mesitylene handling?

Mesitylene is classified as toxic to aquatic life with long-lasting effects (H411). Spill prevention and containment measures must be implemented to prevent environmental release. In case of spillage, contain with non-combustible absorbent materials and dispose of as hazardous waste . Volatile organic compound (VOC) emissions should be controlled through vapor recovery systems and proper storage tank design. The compound undergoes atmospheric photooxidation with hydroxyl radicals .