It is colorless or light yellow liquid. Trichlorotoluene, also known as phenyl chloroform and benzyl trichloride, is an organic compound with the chemical formula of C7H5Cl3. It is a colorless to yellowish transparent liquid, insoluble in water and soluble in ethanol, benzene, ether, etc. It is mainly used as a solvent and can also be used to produce pesticides, dyes, transformer oil, electrolyte, lubricating oil and heat transfer medium.