英文名称:1,4-Dichlorobut-1-Ene; 1,4-Dichlorobut-2-Ene; 1,4-Dichlorobut-1-Ene; 1,4-Dichloro-2-Butene; 1,4-Dichloro-2-Butene Cis And Trans; 2-Butylene Dichloride; 1,4-Dichloro-2-Butene, Mixture Of Ci; Trans-1,4-Dichloro-2-Butene; 1,4-Dichlorobut-2-Ene; 1,4-Dichloro-2-Butene Cis And Trans; 1,4-Dichloro-2-Butene; 1,4-Dichloro-2-Butene, Mixture Of Ci