1-Chloro-4-fluorobenzene

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

Dibenzo[cd,n]naphtho[3,2,1,8-pqra]perylene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 109278-09-3

Atrazine-desisopropyl, 100µg/ml in AL, 5ml