2-Aminobiphenyl 2-Aminodiphenyl 2-Biphenylamine 2-Phenylaniline 90-41-5 NCI-C50282 NSC7661 WLN: ZR BR [1,1'-Biphenyl]-2-amine o-Aminobiphenyl o-Aminodiphenyl o-Biphenylamine o-Phenylaniline