1 联苯胺 benzidine [92-87-5] 300mg/L

2 2-萘胺 2-naphthylamine [91-59-8] 300mg/L

3 4-氯-2-甲基苯胺 4-chloro-2-methyl-aniline [95-69-2] 300mg/L

4 4-氨基联苯 4-aminobiphenyl [92-67-1] 300mg/L