Endosulfan (alpha and beta), 100 ng/µl, 1ml

EPA Method 551.1 Internal Standard

n-Hexatriacontane, ?13C: -26.15, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 630-06-8

Piperacillin-d5, 1mg