IUPAC:(1R,7S,11S,13S,19S,20R,23R)-3,17,19,23-tetrahydroxy-13,20-dimethyl-8,12,21-trioxahexacyclo[17.2.2.0^{2,18}.0^{4,16}.0^{6,14}.0^{7,11}]tricosa-2(18),3,6(14),16-tetraene-5,9,15-trione
IUPAC:(1R,7S,11S,13S,19S,20R,23R)-3,17,19,23-tetrahydroxy-13,20-dimethyl-8,12,21-trioxahexacyclo[17.2.2.0^{2,18}.0^{4,16}.0^{6,14}.0^{7,11}]tricosa-2(18),3,6(14),16-tetraene-5,9,15-trione