1-甲基-4-硝基萘

1-甲基-2-硝基萘

1-甲基-5-硝基-萘

(2-acetyl-3,6-diacetyloxy-7-methoxy-5,8-dioxobenzo[f][1]benzofuran-4-yl) acetate

6-hydroxytetracene-5,12-dione