Term Name:	nigrasin A
Synonyms:	(3R*,6aS,11bR)-3,5,6a,9-tetrahydroxy-2,2-dimethyl-11b-(3-methylbut-2-en-1-yl)-3,4,6a,11b-tetrahydro-2H,6H-[1]benzofuro[3,2-b]pyrano[3,2-g]chromen-6-one
Definition:	An extended flavonoid that is 3,4,6a,11b-tetrahydro-2H,6H-[1]benzofuro[3,2-b]pyrano[3,2-g]chromene substituted by hydroxy groups at positions 3, 5, 6a and 9, geminal methyl groups at positions 2, an oxo group at position 6 and a prenyl group at position 11b. It has been isolated from the twigs of Morus nigra.
Ontology:	ChEBI [CHEBI:68012]  ( EBI )