(2,2'-Binaphthalene)-8,8'-dicarboxaldehyde, 1,1',6,6',7,7'-hexahydroxy-3,3'-dimethyl-5,5'-bis(1-methylethyl)-
1,1',6,6',7,7'-Hexahydroxy-5,5'-diisopropyl-3-3'-dimethyl[2,2'-binaphthalene]-8,8'-dicarboxaldehyde