1,2-Dichloropropylene563-54-2100 % similar 1,3-Dichloro-2-butene926-57-841 % similar Trichloroethylene79-01-639 % similar 1-Fluoro-1,2-dichloroethylene430-58-033 % similar 1,2,3-Trichloro-1-propene96-19-532 % similar 1,1-Difluoro-2-chloroethylene359-10-430 % similar