Fluorene-9-bisphenol 9,9-Bis(4-Hydroxyphenyl)fluorene Molecular Formula C25H18O2 Molecular Weight 350.41 CAS Registry Number 3236-71-3 Properties Melting point 224-226 ºC Specification Appearance: White or almost white powder Melting Point °C: 223 226 Purity (HPLC): 99% Min