2-蒽磺酸

5,8-dihydroxy-9,10-dioxoanthracene-2-sulfonic acid

5-硝基-9,10-二氧代-9,10-二氢蒽-2-磺酸

1,6-dichloroanthracene-9,10-dione

6-chloro-1-nitroanthracene-9,10-dione