1667.11 1,2-Dichloroundecane [81246-86-8] 31.49 %Cl 1674.11 1,2,10,11-Tetrachloroundecane [210049-49-3] 48.22 %Cl 12728.11 4,5,7,8-Tetrachloroundecane [N/A] 48.22 %Cl 12285.11 1,2,3,4,5,6-Hexachloroundecane, isomermix [N/A] 58.60 %Cl