PCB Congeners & Hexachlorobenzene Mix #1

2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene

1,1,1,3,17,19,19,19-Octachlorononadecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Patent Blue V, certified, 0.25g