17a-Ethinylestradiol, certified, 0.25g

2,2',3,3',4,4',5,6,6'-Nonabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 437701-79-6

Trichloroethene

2,3,4,6-Tetrachlorophenol