2,3,5,6-Tetrachloroterephthalic acid

2,2',3,3',4',5-Hexachloro-4-biphenylol, 1.2ml x 50ug/ml, nonane

2,4,5-Tribromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 115245-07-3

Mercury (Hg)