2,4-Dimethylaniline, 100 µg/ml, Methanol, 5ml

Semi-Volatile Internal Standard

Dibenzothiophene-d8, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 33262-29-2

Sulfamerazine, 1000µg/ml in MeOH, 1ml