1,3-Bis(4-nitrophenyl)urea, 50mg

2,2',3,4,4',5-Hexachlorobiphenyl (137)

MCPB, 100µg/ml in Acetonitrile, 5ml

2-(4-Nonylphenoxy)acetic acid isomer mixture,10 µg/mL,isooctane,1mL,