D10-Chlorpyrifos, 20mg

n-Pentylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 538-68-1

Hexachlorobenzene (13C6, 99%), 100µg/ml in Nonane, 1,2ml

2,3',4,5'-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,