10,10-diphenyl-9H-anthracene

N-[2-(2,4-dinitrophenyl)sulfanyl-4-methoxy-6-nitrophenyl]formamide

N-[2-(2,4-dinitrophenyl)sulfanyl-4-ethoxy-6-nitrophenyl]formamide

N-[2-(4-chloro-2-nitrophenyl)sulfanyl-4-ethoxy-6-nitrophenyl]formamide

N-[4-ethoxy-2-(4-methyl-2-nitrophenyl)sulfanyl-6-nitrophenyl]formamide