IUPAC:(1R,8R,9R,16R)-8,16-bis(4-hydroxyphenyl)tetracyclo[7.7.0.0^{2,7}.0^{10,15}]hexadeca-2,4,6,10(15),11,13-hexaene-4,6,12,14-tetrol
IUPAC:(1R,8R,9R,16R)-8,16-bis(4-hydroxyphenyl)tetracyclo[7.7.0.0^{2,7}.0^{10,15}]hexadeca-2,4,6,10(15),11,13-hexaene-4,6,12,14-tetrol