Cyanocobalamine, 98% (dry weight basis),neat,neat,100mg,

2,7-Dichloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Cypermethrin, isomer mix, 100µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. incl. 52315-07-8

2,4´-DDT D8, 100µg/ml in Acetone, 1ml