大黄酚

methyl 3-methyl-4-<3-chloro-5-hydroxynaphthoquinonyl-2>-2-butenoate

8-hydroxy-1-methoxy-3-methylanthracene-9,10-dione

1,5-二羟基-3-甲基-9,10-蒽醌

大黄素甲醚