IUPAC:17-hydroxy-7,11,20-trioxapentacyclo[11.7.0.0^{2,10}.0^{4,8}.0^{14,19}]icosa-1(13),2(10),3,5,8,14(19),15,17-octaen-12-one
IUPAC:17-hydroxy-7,11,20-trioxapentacyclo[11.7.0.0^{2,10}.0^{4,8}.0^{14,19}]icosa-1(13),2(10),3,5,8,14(19),15,17-octaen-12-one