IUPAC:(1S,12R,13S)-1,13-dihydroxy-5,7,11,19-tetraoxapentacyclo[10.8.0.0^{2,10}.0^{4,8}.0^{13,18}]icosa-2,4(8),9,14,17-pentaen-16-one
IUPAC:(1S,12R,13S)-1,13-dihydroxy-5,7,11,19-tetraoxapentacyclo[10.8.0.0^{2,10}.0^{4,8}.0^{13,18}]icosa-2,4(8),9,14,17-pentaen-16-one