5-amino-2,3-dichloronaphthalene-1,4-dione

2,3,5-Trimethoxy-1,4-naphthalenediyl diacetate

3-amino-2-chloro-5-nitronaphthalene-1,4-dione

2-amino-3-chloro-5-nitro-1,4-naphthoquinone

2,3-dimethoxy-5-nitronaphthalene-1,4-dione