7233-92-3

8-hydroxy-2-[4-(8-hydroxy-5-methyl-7-oxo-2,3,4,7-tetrahydrocyclohepta[b]pyran-2-yl)buta-1,3-dien-1-yl]-3,5-dimethyl-3,4-dihydrocyclohepta[b]pyran-7(2H)-one