Esfenvalerate, 100 µg/ml, Acetonitrile, 5ml

n-Heneicosane-d44, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 39756-37-1

2,4-Dimethylpyridine,neat,neat,100mg,

2-Nitronaphthalene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 581-89-5