The molecular formula C2H4Br2 (molar mass: 187.86 g/mol, exact mass: 185.8680 u) may refer to:
- 1,1-Dibromoethane (ethylidene dibromide)
- 1,2-Dibromoethane, or ethylene dibromide (EDB)
The molecular formula C2H4Br2 (molar mass: 187.86 g/mol, exact mass: 185.8680 u) may refer to: