Folpet-d4, 100μg/ml in Acetone, 5ml

2,4,5-Trichloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene

2,5-Diisopropylphenol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 35946-91-9

Pentachloronitrobenzene-13C6,100 µg/mL,n-nonane,1mL,