4-Chlorodiphenyl sulfone 4-Chlorophenyl phenyl sulfone 80-00-2 Benzene, 1-chloro-4-(phenylsulfonyl)- Compound r-242 ENT 17,941 NSC404335 R 242 Sulfenon Sulfenone Sulfone, p-chlorophenyl phenyl Sulphenone Trifenson WLN: WSR&R DG p-Chlorophenyl phenyl sulfone p-Monochlorophenyl phenyl sulfone r-242-b