Pentachlorotoluene is a synthetic organobromine compound with the molecular formula .
Pentabromotoluene is a derivative of toluene and is synthesized from it.
The compound forms white crystalline powder. Its crystals are of monoclinic system. Due to the substitution with five bromine atoms on the aromatic ring, pentabromotoluene has a significantly lower volatility than toluene.
Pentabromotoluene is widely used as a flame retardant in textiles, rubber, unsaturated polyesters, polyethylene, SBR latex, etc.