SPIROBIINDANE

3,3,3',3'-Tetramethyl-1,1'-spirobi[indan]-6,6'-diol

tetrahydrotetramethyl-1,1'-spirobi-1H-indene-6,6'-diol

6,6'-Dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindan

6,6'-Dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane

3,3,3',3'-TetraMethyl-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-6,6'-diol