dimethyl 7,7'-dimethoxy-[4,4'-bibenzo[d][1,3]dioxole]-5,5'-dicarboxylate; CAS No.: 73536-69-3; dimethyl 7,7'-dimethoxy-[4,4'-bibenzo[d][1,3]dioxole]-5,5'-dicarboxylate. PROPERTIES: Dimethyl 7,7'-dimethoxy-[4,4'-bibenzo[d][1,3]dioxole]-5,5'-dicarboxylate is a crystalline powder with a molecular weight of approximately 456.4 g/mol. It has a melting point between 180-185 C. The compound is moderately soluble in common organic solvents like dimethylformamide and dimethyl sulfoxide but is practically insoluble in water. The methoxy groups enhance solubility in organic media. For proper storage, keep in a tightly sealed container at room temperature away from heat and moisture. Safety: This compound may cause skin irritation and serious eye damage. In case of contact with skin, wash immediately with plenty of water and remove contaminated clothing. Use personal protective equipment including safety glasses and laboratory coats. APPLICATIONS: In materials science, dimethyl 7,7'-dimethoxy-[4,4'-bibenzo[d][1,3]dioxole]-5,5'-dicarboxylate serves as a monomer for creating polyarylates. The dioxole rings provide thermal stability, while the dicarboxylate groups facilitate polymerization. In organic synthesis, it is used as a building block for creating bioactive molecules. The bibenzo structure provides extended -conjugation. In electronic materials, derivatives of this compound are explored for creating liquid crystalline materials. The combination of the dioxole rings and the dicarboxylate groups creates anisotropic molecules suitable for liquid crystal applications. These applications are documented in polymer chemistry journals and electronic materials research articles.