​sell 4,4'-Bis(4-aminophenoxy)biphenyl; 4,4'-(1,1'-Biphenyl-4,4'-diyldioxy)dianiline

4,4'-Bis(4-aminophenoxy)biphenyl; 4,4'-(1,1'-Biphenyl-4,4'-diyldioxy)dianiline;C24H20N2O2;CAS:13080-85-8