3,3',4,5'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Azinphos-ethyl, 100 µg/ml, Toluene, 1ml

Methyl formate, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 107-31-3

Piperacillin, 250mg