Term Name:	hyperxanthone E
Synonyms:	5,9,11-trihydroxy-3,3-dimethyl-2,3-dihydropyrano[3,2-a]xanthen-12(1H)-one
Definition:	A pyranoxanthene that is 2,3-dihydropyrano[3,2-a]xanthen-12(1H)-one substituted by hydroxy groups at positions 5, 9 and 11 and geminal methyl groups at position 3. Isolated from the aerial parts of Hypericum scabrum, it exhibits cytotoxicity for human tumour cells.
Ontology:	ChEBI [CHEBI:66058]  ( EBI )