36545-53-6 6H,7H,11H-Bis(1)benzopyrano(4,3-b'':6',7'-e)pyran-7-one, 2,3,8-trihydroxy-11,11-dimethyl-13-(3-methyl-2-butenyl)-6-(2-methyl-1-propenyl)-, (+)- Cycloheterophyllin