# Species Formula 4270 Dibromoborane (1)HBBr2 4271 Dibromomethane (Geo)CH2Br2 4272 DibromomethaneCH2Br2 4273 1,1-DibromoethaneC2H4Br2 4274 1,4-DibromobutaneC4H8Br2 4275 Li(I)2Br2N4 (SAJVEE01) (Geo)C12H32Li2N4Br2 4276 Li(I)2Br2N4 (SAJVEE01)C12H32Li2N4Br2 4277 Carbonyl bromideCOBr2 4278 Carbonyl bromide (Geo)COBr2 4279 1,2-Dibromocyclobutene-3,4-dione (Geo)C4O2Br2 4280 Be(II)O2Br2 (QQQDPY01) (Geo) H20BeC8O2Br2 4281 Be(II)O2Br2 (QQQDPY01)H20BeC8O2Br2 4282 Li(I)2Br2O4 (DECXEO01) (Geo)C12H24Li2O4Br2 4283 Li(I)2Br2O4 (DECXEO01)C12H24Li2O4Br2 4284 DibromofluoroboraneBFBr2 4285 DifluorodibromomethaneCF2Br2 4286 1,2-DibromotetrafluoroethaneC2F4Br2 4287 Sodium bromide, dimer (Geo)Na2Br2 4288 Sodium bromide, dimerNa2Br2 4289 Magnesium dibromideMgBr2 4290 Magnesium dibromide (Geo)MgBr2