when compared with the butanol extraction procedure , arylamines ( such as 2-aminofluorene , 2-aminophenanthrene , 2-naphthylamine , 4-aminobiphenyl , 4-azoaminobenzene and n'-acetylbenzidine ) bound to the c8 position of guanine were lost almost completely ( 0.2-4 % recovery ) in the nuclease p1-mediated assay , but the presence of a polar group in the aromatic amine moiety ( such as 2-acetylaminofluorene , 2-acetylamino-phenanthrene and methyl-4-azoaminophenyl ) rendered similar recovery .
C0000300
2-naphthylamine
C0002508
amine