IUPAC:6,8,12-trihydroxy-2-methyl-2-{[(6,8,12-trihydroxy-2,2-dimethyl-2,5-dihydro-1,10-dioxatetraphen-5-ylidene)-lambda3-oxy]methyl}-2,5-dihydro-1,10-dioxatetraphen-5-one
IUPAC:6,8,12-trihydroxy-2-methyl-2-{[(6,8,12-trihydroxy-2,2-dimethyl-2,5-dihydro-1,10-dioxatetraphen-5-ylidene)-lambda3-oxy]methyl}-2,5-dihydro-1,10-dioxatetraphen-5-one