2,2,4,4,6,6,8,8-octaphenoxy-1,3,5,7-tetraza-2λ⁵,4λ⁵,6λ⁵,8λ⁵-tetraphosphacycloocta-1,3,5,7-tetraene

Phosphorous acid 2-ethyl-phenyl ester diphenyl ester

Phosphorous acid 2,6-diethyl-phenyl ester diphenyl ester

Phosphorous acid 2,6-diethyl-phenyl ester 2-ethyl-phenyl ester phenyl ester

4,4'-二氨基二苯醚