Cas号74-95-3Beilstein969143分子式CH2Br2分子量173.83别名***化亚甲基,亚甲基二***外观Appearance无色透明至微***液体红外光谱鉴别Infraredspectrometry符合纯度Purity>99.9%(GC)相对密度Specificgr***ity(20/20°C)2.4980-2.5040折光率Refractiveindexn20/D1.5400-1.5420)