5,11-Dichlorotricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene; 5,11-Dichlorotricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hex 5,11-Dichlorotricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene; 5,11-Dichlorotricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene; 6,12-Dichlorobis(p-xylylene); Dichlorodi-p-xylylene Dichloro-[2,2]-paracyclophane