2-(9,10-dioxoanthracen-2-yl)acetic acid

2,2'-二甲基-1,1'-联蒽醌

1-anilino-9,10-dioxoanthracene-2-carboxylic acid

1-氯-9,10-二氧代-9,10-二氢蒽-2-羧酸

1,3,4-trihydroxy-9,10-dioxoanthracene-2-carboxylic acid