PCB No. 157, 10µg/ml in Isooctane, 10ml

n-Tetracosane, ?13C: -26.42, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 646-31-1

Clothianidin-d3 (N-methyl-d3),100 µg/mL,acetonitrile,1mL,

Ethyl benzoylformate, 250mg