IUPAC:3,7,9-trihydroxy-17-methyl-16,18-dioxapentacyclo[15.2.2.0^{2,15}.0^{4,13}.0^{6,11}]henicosa-2(15),3,6,8,10,13-hexaene-5,12-dione
IUPAC:3,7,9-trihydroxy-17-methyl-16,18-dioxapentacyclo[15.2.2.0^{2,15}.0^{4,13}.0^{6,11}]henicosa-2(15),3,6,8,10,13-hexaene-5,12-dione