5128-41-6

Griseofulvin 4-O-Demethyl Impurity 7-Chloro-4-hydroxy-2',6-dimethoxy-6'-methyl-3h-spiro[benzofuran-2,1'-cyclohexan]-2'-ene-3,4'-dione (1'S,6'R)-7-Chloro-4-hydroxy-2',6-diMethoxy-6'-Methylspiro[benzofuran-2(3H),1'-[2]cyclohexene]-3,4'-dione (1'S-trans)- 7-Chloro-4-hydroxy-2',6-diMethoxy-6'-Methylspiro [benzofuran-2(3H),1'-[2]cyclohexene]-3,4'-dione Spiro[benzofuran-2(3H),1'-[2]cyclohexene]-3,4'-dione, 7-chloro-4-hydroxy-2',6-dimethoxy-6'-methyl-, stereoisomer