beta-Endosulfan, 100 µg/ml, Acetonitrile, 5ml

2,2',3,4,4',5,5',6-Octabromodiphenyl ether, 50µg/ml in Toluene, 1,2ml

2-Ethylhexanoic acid-d15, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 352431-38-0

17a-Ethinylestradiol, 100 µg/ml, Methanol, 1ml