Tetramethyl 7,7′-dimethyl-1,1′,3,3′-tetrahydro-4,4′-bi-2-benzofuran-5,5′,6,6′-tetracarboxylate

7,7′-Diméthyl-1,1′,3,3′-tétrahydro-4,4′-bi-2-benzofurane-5,5′,6,6′-tétracarboxylate de tétraméthyle

[4,4′-Biisobenzofuran]-5,5′,6,6′-tetracarboxylic acid, 1,1′,3,3′-tetrahydro-7,7′-dimethyl-, tetramethyl ester

Tetramethyl 7,7′-dimethyl-1,1′,3,3′-tetrahydro-4,4′-bi-2-benzofuran-5,5′,6,6′-tetracarboxylate

Tetramethyl-7,7′-dimethyl-1,1′,3,3′-tetrahydro-4,4′-bi-2-benzofuran-5,5′,6,6′-tetracarboxylat