Dodecylbenzene (hard type) (mixture of branched chain isomers), 500ml

Tetrachlorvinphos, 100µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 961-11-5

2,3,5,6-Tetrabromo-p-xylene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

N-Nitroso-N-methylaniline, 100μg/ml in MeOH, 5ml