Atrazine-desisopropyl-2-hydroxy, 100 µg/ml, Metha

17 alpha(H),21ß(H)-(22S)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 67069-13-0

Profenofos, 100 µg/ml, Toluene, 1ml

Pristane, 100mg