2,2-Bis(3-amino-4-hydroxyphenyl)-hexafluoropropane2,2-双(3-氨基-4-羟基苯基)六氟丙烷2,2-Bis(3-amino-4-hydroxyphenyl)hexafluoropropane2,2-Bis(3-amino-4-hydroxyphenyl)hexafluoropropane 99%4,4'-(1,1,1,3,3,3-Hexafluoropropane-2,2-diyl)bis(2-aminophenol)4,4'-(Perfluoropropane-2,2-diyl)bis(2-aminophenol)