CAS No.: 603-45-2 Synonyms: 4-[Bis(4-hydroxyphenyl)methylene]-2,5-cyclohexadienone; Aurin Formula: C₁₉H₁₄O₃ Formula Weight: 290.31 Linear Formula: C₁₉H₁₄O₃ MDL No.: MFCD00001624 Color Index No.: 43800