1,2,3,4,7,7-Hexachloro-5-(trichlorosilyl)-2-norbornene 18134-58-2 EINECS 242-019-9 Silane, trichloro(1,4,5,6,7,7-hexachloro-5-norbornen-2-yl)- Trichloro(1,4,5,6,7,7-hexachloro-5-norbornen-2-yl)silane