Fensulfothion-oxon, 100 µg/ml, Acetonitrile, 5ml

2,3,7,8-Tetrachlorodibenzo-p-dioxin ,50 µg/mL,n-nonane,1mL,

Betulinic Acid, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 472-15-1

1,3,6-Trimethylchrysene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.