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