1,1,2,2-四溴乙烷，结构式CHBr₂CHBr₂。

白色或淡黄色有樟脑和碘仿气味的易燃液体。不溶于水，与乙醇、乙醚、氯仿、冰醋酸和苯胺混溶。受光照和加热时发生分解并使颜色发黄。加热至190°C时分解产生剧毒的碳酰溴蒸气。

Tetrabromoethane (TBE) is a halogenated hydrocarbon, chemical formula C₂H₂Br₄. Although three bromine atoms may bind to one of the carbon atoms creating 1,1,1,2-tetrabromoethane this is not thermodynamically favorable, so in practice tetrabromoethane is equal to 1,1,2,2-tetrabromoethane, where each carbon atom binds two bromine atoms.