This aromatic, also known as 2,5-dimethyl-p-xylene, presents as a white to almost white crystalline powder with a camphor-like smell. It is known to be soluble in ether, alcohols, benzene and acetone, and insoluble in water. Store in a cool and dark place, away from any incompatibles. 1,2,4,5-Tetramethylbenzene is incompatible with oxidizing agents and should also not be handled near them. This chemical is harmful to aquatic life.