17 alpha(H),21 alpha(H)-Hopane, 50µg/mL in Isooctane, 1ml

2,3,3',4,5',6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Napropamide, , Solvent-, Unit , # of units-, Cas.no. 15299-99-7

Benzo[ghi]perylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 191-24-2