Mixed Calibration Standard 4

Propazine, 100 µg/ml, Acetonitrile, 5ml

N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)urea , 1.2ml x 50ug/ml, methanol

2-Methoxypyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 3149-28-8