6-(3,4-dihydroxy-benzyl)-2,10-dihydroxy-5-(4-hydroxy-2-methoxy-phenyl)-1,3-dimethoxy-benzo[a]xanthen-9-one, 6-(3,4-Dihydroxy-benzyl)-2,10-dihydroxy-5-(4-hydroxy-2-methoxy-phenyl)-1,3-dimethoxy-benzo[a]xanthen-9-on, 6-[(3,4-dihydroxyphenyl)methyl]-2,10-dihydroxy-5-(4-hydroxy-2-methoxyphenyl)-1,3-dimethoxy-9H-benzo[a]xanthen-9-one, 6-(3,4-dichloro-phenyl)-pteridine-2,4,7-triamine, 6-(3,4-Dichlor-phenyl)-2,4,7-triamino-pteridin,