4-aminobifenyl en/of zouten daarvan, benzotrichloride, benzidine en/of zouten daarvan, di(chloormethyl)ether, chloormethylether, 1,2-dibroomethaan, diethylsulfaat, dimethylsulfaat, dimethylcarbamoylchloride, 1,2-dibroom-3-chloorpropaan, 1,2-dimethylhydrazine, dimethylnitrosamine, hexamethylfosforzuurtriamide, hydrazine, 2-naftylamine en/of zouten daarvan, 4-nitrodifenyl en 1,3-propaansulton
4-Aminobiphenyl und/oder seine Salze, Benzotrichlorid, Benzidin und/oder seine Salze, Bis(chlormethyl)ether, Chlormethylmethylether, 1,2-Dibromethan, Diethylsulfat, Dimethylsulfat, Dimethylcarbamoylchlorid, 1,2-Dibrom-3-chlorpropan, 1,2-Dimethylhydrazin, Dimethylnitrosamin, Hexamethylphosphortriamid, Hydrazin, 2-Naphthylamin und/oder seine Salze, 4-Nitrodiphenyl und 1,3-Propansulton