IUPAC:2,4,18-trihydroxy-15-(3-hydroxy-3-methylbutyl)-7,9,13-trioxapentacyclo[10.8.0.0^{3,10}.0^{4,8}.0^{14,19}]icosa-1,3(10),5,11,14,16,18-heptaen-20-one
IUPAC:2,4,18-trihydroxy-15-(3-hydroxy-3-methylbutyl)-7,9,13-trioxapentacyclo[10.8.0.0^{3,10}.0^{4,8}.0^{14,19}]icosa-1,3(10),5,11,14,16,18-heptaen-20-one