Low Level Hexavalent Chromium

Tri-n-pentyltin chloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3342-67-4

1,2,3,4,6,7-Hexachloronaphthalene, 50µg/ml in nonane, 1,2ml

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