4-(phenylazo)aniline 4-Aminoazobenzene 4-[(E)-phenyldiazenyl]aniline 4-phenyldiazenylaniline AAB C12H11N3 C1=CC=C(C=C1)N=NC2=CC=C(C=C2)N CAS:60-09-3 Wikipedia:Aniline_Yellow organic molecular entity