(5-chloro-2-hydroxyphenyl)-(4-chlorophenyl)methanone

2-(4-chlorophenyl)-5-(4-nitrophenyl)-1,3,4-oxadiazole

4-chloro-3-chlorosulfonylbenzoyl chloride

(4-nitrophenyl) 4-chlorobenzoate

4-(4-chlorobenzoyl)benzoic acid