61739-55-7

10,11,21,22,23,24,25,26-octachloro-3,3,7,7,14,14,18,18-octaphenyl-3,7,14,18-tetraphosphoniatricyclo[18.2.2.2~9,12~]hexacosa-1(22),9,11,20,23,25-hexaene