3-methoxy-4-[(2-nitrophenyl)hydrazinylidene]cyclohexa-2,5-dien-1-one

5-methoxy-2-(2'-nitrophenylazo)phenol

1,2-二硝基苯

ethyl 2-[(2-nitrophenyl)diazenyl]-3-oxobutanoate

2-(1,3-二氢苯并三唑-2-基)环己-2,5-二烯-1,4-二酮