Flavoobscurin A

1,3,3'-Trichloroemodin bianthrone

1,3,3'-Trichloro-2,2',4,4',5,5'-hexahydroxy-7,7'-dimethyl-9,9'-bianthracene-10,10'(9H,9'H)-dione

1,3,3'-Trichloro-2,2',4,4',5,5'-hexahydroxy-7,7'-dimethyl-9,9'-bi(anthracene)-10,10'(9H,9'H)-dione