D6-Isoproturon, 100 µg/ml, Acetone, 1ml

Methanol QC Reference Mixture III n-Butyl sulfide, 0.5 ppm (weight S by weight) in 99.9 % methanol; units: 10x10mL

Clozapine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 5786-21-0

2,4'-DDE-d8 (dichloropropyl-d4), 100µg/mL in AL, 1ml