135643-39-9 4H-Dinaphtho(1,2-b:2',1'-d)pyran-4-one, 2,3,4a,5,6,14-hexadro-4a-methyl-, (+-)- 6-Obhepo 6-Oxabenz(3,4)-D-homoestra-1,3,5(10),8,14-pentaen-17-one