2,4-Dichlorobenzyl-tris(p-tolyl)phosphonium iodide 73790-41-7 NSC221225 Phosphonium, (2,4-dichlorobenzyl)tris(p-tolyl)-, iodide Phosphonium, [(2,4-dichlorophenyl)methyl]tris(4-methylphenyl)-, iodide WLN: GR CG D1PR D1&R D1&R D1 &I &9/26