2'',3''-Dihydrogeiparvarin 2H-1-Benzopyran-2-one, 7-((3-(tetrahydro-5,5-dimethyl-4-oxo-2-furanyl)-2-butenyl)oxy)-, (E)-(+-)- 7-((3-(Tetrahydro-5,5-dimethyl-4-oxo-2-furanyl)-2-butenyl)oxy)-2H-1-benzopyran-2-one 98066-12-7