2-Chloropropane, 1ml

Metazachlor Ethane Sulfonic Acid-d6 Sodium Salt, 1mg

Prosulfocarb, 100 µg/ml, Acetonitrile, 5ml

2,2-Bis(4-hydroxy-13C6-phenyl)propane, 1.2ml x 50ug/ml, methanol