Teflubenzuron, 100 µg/ml, Methanol, 1ml

2,3,3',4,4',5,5'-Heptachlorobiphenyl, 5mg

2,2',3,4,4',5,6-Heptabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 189084-67-1

N-Nitroso-N-ethylaniline, 100μg/ml in MeOH, 5ml