All
 D03 Heterocyclic Compounds D006571 +
 D03.494 Heterocyclic Compounds, 3-Ring D006575 +
 D03.494.953 Xanthenes D014966 +
 D03.494.953.275 Fluoresceins D005452 +
 D03.494.953.558 Propantheline D011413 
 D03.494.953.570 Pyronine D011754 
 D03.494.953.600 Rhodamines D012235 +
 D03.494.953.704 Thioxanthenes D013892 +
 D03.494.953.852 Xanthones D044004 +