tianning co.ltd
4,4'-Bis(3-aminophenoxy)benzophenone
Inquire
4,4'-Bis(4-aminophenoxy)biphenyl
Inquire
2,2'-Dimethyl[1,1'-biphenyl]-4,4'-diamine
Inquire
1,2,4,5-Cyclohexanetetracarboxylic acid dianhydride
Inquire