86191-23-3
dichloro-5,5'-hydroxy-6-dimethyl-4,6'-methoxy-4'-spiro<2H-benzofuran-2,1'-cyclohexadiene-3',5'>dione-2',3

86191-20-0
5,5'-dichloro-4',6-dimethoxy-4,6'-dimethylspiro-2',3-dione

86191-17-5
3,3'-dichloro-4,4',6,6'-tetrahydroxy-2,2'-dimethylbenzophenone

86191-18-6

86191-21-1