Profenofos, 100 µg/ml, Cyclohexane, 5ml

n-Tetracosane, ?13C: -26.42, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 646-31-1

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

2,4,5,6-Tetrachloro-m-xylene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.