1-Chloro-4-((2-chloroethyl)sulphonyl)benzene 16191-84-7 4-06-00-01582 (Beilstein Handbook Reference) BRN 2269628 Benzene, 1-chloro-4-((2-chloroethyl)sulfonyl)- (9CI) EINECS 240-323-6 NSC 196185 SULFONE, 2-CHLOROETHYL p-CHLOROPHENYL p-Chlorophenyl 2-chloroethyl sulfone