(1,1'-Bianthracene)-9,9',10,10'-tetrone, 5,6,7,8-tetrahydro-4,4',5,6,6',7,8-heptahydroxy-2,2'-dimethoxy-7,7'-dimethyl-, (5S-(5alpha,6beta,7beta,8alpha))- 88901-69-3 Alterporriol B Ap-B 3